**Global Top 50 Disease & Health Information Websites (2025)…
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Date 25-11-29 23:14
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**Global Top 50 Disease & Health Information Websites (2025)**
**전 세계 질병·건강 정보 사이트 Top 50 (2025 기준)**
---
> ⚕️ **Important / 중요 안내**
> This is **information only**, not medical advice. Always confirm with a qualified doctor or local health authority before making decisions about tests, medicines, or treatment.
---
## 1. What this “Top 50” actually means
### EN
* I combined **global traffic rankings** (Similarweb etc.), curated expert lists (OpenMD, NHS “trusted sites”, etc.) and the **reputation / authority** of organizations (WHO, NIH, cancer charities…). ([Similarweb][1])
* The **order (1–50)** is **approximate**, not a strict “official” ranking. I put:
1–16: global & government / public-health sites
17–31: large hospital & general medical encyclopedias
32–43: big disease-specific organizations (cancer, heart, diabetes, etc.)
44–50: rare-disease, skin, sleep, mental health, child health
* All sites are **relatively trustworthy** compared with random blogs or commercial pages, but you still need to read critically.
### KO
* 전 세계 **트래픽(방문자 수) 통계**, 전문 사이트 모음(예: OpenMD, NHS 추천 사이트 등) 그리고 **기관의 공신력(WHO, NIH, 각종 암·심장·당뇨 재단 등)**을 종합해서 추린 리스트다. ([Similarweb][1])
* **1~50위 순서는 대략적인 중요도·영향력 순서**일 뿐, 공식 순위표는 아니다.
* 1~16위: WHO·정부·공공 보건 사이트
* 17~31위: 대형 병원·종합 의학 백과·뉴스
* 32~43위: 암·심장·당뇨 등 **질병 특화 재단/단체**
* 44~50위: 희귀질환·피부·수면·정신건강·소아 건강
* 무작위 블로그보다 훨씬 신뢰도가 높지만, **어디까지나 참고용**으로 보고 항상 비판적으로 읽어야 한다.
### JA
* 世界的な**アクセス数ランキング**、専門家による推奨リスト（NHS・OpenMD など）、WHO や NIH などの**公的機関の権威性**を組み合わせて作った「実用トップ50」です。
* **1〜50位の順番はおおよその重要度・影響力順**であり、公式ランキングではありません。
* いずれも比較的信頼できる情報源ですが、**最終判断は必ず医師と相談**してください。
### ZH
* 本榜单综合了**全球流量排行**、专业推荐列表（如 OpenMD、NHS 推荐网站等）以及 WHO、NIH 等机构的**权威性**，整理出一个“实用 Top 50”。 ([Similarweb][1])
* **1–50 的顺序是大致的“重要度＋影响力”排序，并不是官方排名。**
* 这些网站整体上比普通博客可信得多，但依然只能作为**参考信息**，真正的诊断与治疗一定要听医生的。
---
## 2. Global Top 50 Disease & Health Sites (2025, curated ranking)
> 설명은 **영어로**, 사이트 이름·도메인은 그대로 두었습니다.
> (질병 이름·용어는 각 사이트에서 언어를 바꾸어 볼 수 있는 곳도 많습니다.)
### 1–16: Global & Government / Public Health
1. **World Health Organization (WHO) – `who.int`**
UN’s specialized health agency. Global disease outbreaks, vaccination policy, health statistics & topic fact sheets. ([세계보건기구][2])
2. **National Institutes of Health (NIH, USA) – `nih.gov`**
World-leading biomedical research agency; huge A-Z library on diseases, clinical trials and health topics. ([Similarweb][1])
3. **Centers for Disease Control and Prevention (CDC, USA) – `cdc.gov`**
Infectious disease surveillance, travel health, vaccination schedules, and detailed guidelines for professionals & public. ([refseek.com][3])
4. **National Institute of Mental Health (NIMH, USA) – `nimh.nih.gov`**
Mental disorders (depression, anxiety, bipolar etc.), statistics and brochures; strong focus on evidence-based mental health information. ([정신 건강 연구소][4])
5. **MedlinePlus (U.S. National Library of Medicine) – `medlineplus.gov`**
One of the best consumer health encyclopedias: diseases, drugs, lab tests, surgery, videos, many languages. ([OpenMD][5])
6. **National Cancer Institute (NCI, USA) – `cancer.gov`**
NIH center dedicated to cancer: types of cancer, staging, treatment options, clinical trials, statistics. ([MedlinePlus][6])
7. **health.gov (Office of Disease Prevention and Health Promotion, USA) – `health.gov`**
Official guidelines on nutrition, physical activity, preventive care & public-health campaigns. ([OpenMD][5])
8. **NHS (United Kingdom) – `nhs.uk`**
Official UK health site: conditions, symptoms, medicines, “what to do” for common emergencies; widely recommended as a trusted source. ([library.hee.nhs.uk][7])
9. **NHS inform (Scotland) – `nhsinform.scot`**
Scotland’s official health information and self-help advice, aligned with NHS standards. ([OpenMD][5])
10. **European Centre for Disease Prevention and Control (ECDC) – `ecdc.europa.eu`**
EU-level infectious disease monitoring, risk assessments and technical reports – very strong on outbreaks and epidemiology. ([ECDC][8])
11. **Public Health Agency of Canada (PHAC) – `canada.ca/en/public-health.html`**
National infectious-disease guidance, chronic disease prevention, travel health advisories for Canada. ([캐나다][9])
12. **Health Canada – `canada.ca/en/health-canada.html`**
Info on medicines, medical devices, food safety, environmental health and regulations affecting patients. ([캐나다][9])
13. **Healthdirect Australia – `healthdirect.gov.au`**
Government-funded triage and health information service; symptom checker and high-quality disease pages. ([Similarweb][1])
14. **Better Health Channel (Victoria, Australia) – `betterhealth.vic.gov.au`**
Evidence-based consumer health articles created by Victorian State Government; often cited as a model gov health site. ([Similarweb][1])
15. **Cancer Council Australia – `cancer.org.au`**
Australia’s peak independent cancer authority; very strong on cancer prevention, screening, and detailed cancer-type pages. ([cancer.org.au][10])
16. **HealthHub (Singapore) – `healthhub.sg`**
National digital health platform; conditions A–Z, lifestyle programmes, plus access to personal health records. ([HealthHub][11])
---
### 17–31: Major Hospitals & General Medical Encyclopedias
17. **Mayo Clinic – `mayoclinic.org`**
Famous US nonprofit hospital; very detailed disease pages with symptoms, causes, tests and treatment options. ([Similarweb][1])
18. **Cleveland Clinic – `clevelandclinic.org`**
Leading academic medical center; condition and procedure explanations, especially strong in heart & neurology. ([Similarweb][1])
19. **Johns Hopkins Medicine Health Library – `hopkinsmedicine.org/health`**
US academic center; disease explainers, surgery overviews, and “living with” chronic conditions.
20. **Healthline – `healthline.com`**
One of the most visited consumer medical sites; articles are medically reviewed and updated regularly. ([Similarweb][1])
21. **WebMD – `webmd.com`**
Large medical news & encyclopedia portal; symptom checker, drug info, condition overviews. ([Similarweb][1])
22. **Verywell Health – `verywellhealth.com`**
Plain-language guides for common diseases, procedures and tests; good for lay readers. ([OpenMD][5])
23. **Medical News Today – `medicalnewstoday.com`**
Mixture of disease explainers and coverage of new studies – helpful for seeing current research trends. ([Similarweb][1])
24. **Everyday Health – `everydayhealth.com`**
Focus on chronic diseases (diabetes, heart disease, arthritis) and practical self-management tips. ([OpenMD][5])
25. **Patient.info – `patient.info`**
UK-based; many GP-style leaflets on conditions, investigations and treatments, including professional versions. ([OpenMD][5])
26. **StatPearls – `statpearls.com`**
Peer-reviewed medical articles mainly for professionals; very detailed, but open access and good for deep dives. ([OpenMD][5])
27. **Merck Manuals / MSD Manuals – `msdmanuals.com` / `merckmanuals.com`**
Classic medical reference; has both professional and consumer versions of disease entries. ([Similarweb][1])
28. **Medscape – `medscape.com`**
Clinical reference, drug monographs and medical news; professional focus but useful if you can handle technical language. ([OpenMD][5])
29. **UpToDate – `uptodate.com`**
Subscription evidence-based clinical reference; has patient education pages that many hospitals link to. ([OpenMD][5])
30. **OpenMD – `openmd.com`**
Meta-search engine that indexes thousands of medical journals & trusted health websites, and also curates “Top health & medical websites” lists. ([OpenMD][5])
31. **InformedHealth (IQWiG, Germany) – `informedhealth.org`**
Evidence-based summaries of diseases and treatments from Germany’s health-technology assessment institute.
32. **HealthCentral – `healthcentral.com`**
Community-oriented site; focuses on living with chronic illness and patient stories plus expert content.
---
### 32–43: Large Disease-Specific Organizations (Cancer, Heart, Diabetes, etc.)
32. **American Cancer Society – `cancer.org`**
US nationwide cancer charity; patient-friendly info on types of cancer, screening and survivorship. ([MedlinePlus][12])
33. **Cancer Research UK – `cancerresearchuk.org`**
Major UK cancer charity; detailed cancer type pages, statistics and risk factor information. ([cdisc.org][13])
34. **Macmillan Cancer Support – `macmillan.org.uk`**
UK charity providing cancer information plus strong focus on financial, emotional and practical support. ([Macmillan Cancer Support][14])
35. **National Comprehensive Cancer Network (NCCN) – `nccn.org`**
Coalition of US cancer centers; publishes highly respected clinical guidelines and free patient-friendly guideline books. ([nccn.org][15])
36. **American Heart Association – `heart.org`**
Heart disease & stroke information, prevention campaigns, patient education materials.
37. **British Heart Foundation – `bhf.org.uk`**
UK charity focused on heart and circulatory diseases; explains conditions, tests and lifestyle changes.
38. **National Kidney Foundation – `kidney.org`**
Chronic kidney disease, dialysis, transplantation and prevention resources for patients and caregivers.
39. **American Diabetes Association – `diabetes.org`**
Diabetes (type 1, type 2, gestational) education, meal planning, complications and standards of care.
40. **Diabetes UK – `diabetes.org.uk`**
UK diabetes charity; self-management resources, diet, exercise and complication prevention.
41. **American Lung Association – `lung.org`**
Lung diseases (asthma, COPD, lung cancer, infections), air quality and smoking-cessation support.
42. **Alzheimer’s Association – `alz.org`**
Alzheimer’s disease and other dementias: symptoms, stages, caregiving, and local support services.
43. **Arthritis Foundation – `arthritis.org`**
Arthritis and related rheumatic diseases; pain management, exercise guidance and community support.
---
### 44–50: Rare Diseases, Skin, Sleep, Mental & Child Health
44. **Orphanet – `orpha.net`**
Probably the most important global rare-disease portal: inventory & encyclopedia for 6000+ rare diseases, plus orphan-drug information. ([orpha.net][16])
45. **National Organization for Rare Disorders (NORD) – `rarediseases.org`**
US rare-disease umbrella group: disease database, patient assistance, advocacy and links to support groups. ([National Organization for Rare Disorders][17])
46. **DermNet NZ – `dermnetnz.org`**
World-leading free dermatology website; A–Z of skin diseases with thousands of clinical photos. ([DermNet®][18])
47. **Sleep Foundation – `sleepfoundation.org`**
Sleep disorders, sleep hygiene and science-based advice on improving sleep; includes statistics and FAQs. ([Sleep Foundation][19])
48. **Mind (UK mental health charity) – `mind.org.uk`**
Very approachable information on mental health problems, treatments, self-help tips and legal rights in England & Wales. ([mind.org.uk][20])
49. **HealthyChildren.org (American Academy of Pediatrics) – `healthychildren.org`**
Child and adolescent health site, backed by ~67,000 pediatricians; covers common illnesses, vaccines, safety and development. ([HealthyChildren.org][21])
50. **StatPearls / professional cross-check (already #26 but crucial use-case)**
For doctors, nurses and students, StatPearls and similar professional resources are excellent **secondary checks** for complex or rare conditions; non-professionals should be careful because content is quite technical.
---
## 3. How to use these disease sites *safely & effectively*
### 3-A. Practical tips (English)
1. **Start with official or .gov / big NGO sites for serious issues**
* Sudden high fever, suspected stroke, heart attack, poisoning, suicide risk etc. → Start with **WHO, CDC, NIH, NHS, Healthdirect, HealthHub** or your own country’s public-health site.
* These give **triage** style advice: “Call emergency now / see a doctor today / OK to self-care”.
2. **Use hospital / encyclopedias to understand your diagnosis**
* Once you *already* have a diagnosis (“type 2 diabetes”, “ulcerative colitis”, “breast cancer stage II”), sites like **Mayo, Cleveland Clinic, Johns Hopkins, Healthline, WebMD, MedlinePlus** are good for:
* What the disease is
* Typical tests
* Treatment options and side-effects
* Long-term self-management
3. **Use disease-specific charities for real-life management**
* Cancer, heart disease, diabetes, dementia, arthritis etc. → the big charities (Cancer Research UK, AHA, ADA, Alzheimer’s Association…) often explain:
* What daily life looks like
* Diet & exercise tips that are actually realistic
* Financial, psychological, caregiver support
4. **Rare, skin, and “strange symptoms”**
* Very unusual or undiagnosed conditions → **Orphanet, NORD** can show possible rare diseases, but do **not** self-diagnose; take names to your specialist.
* Skin problems → **DermNet** helps you *see* patterns and read common diagnoses, but only a dermatologist can confirm.
* Chronic insomnia, snoring, suspected sleep apnea → **Sleep Foundation** is good for sleep hygiene and explaining formal sleep disorders; you still may need a sleep study.
5. **Mental health**
* For understanding depression, anxiety, psychosis etc. in English: **NIMH**, **Mind**, and national mental-health organizations in your country are safer than random social-media advice.
* For **suicidal thoughts or self-harm**, online reading is not enough: contact local emergency services or crisis hotlines immediately.
6. **Check quality quickly with a 5-point filter**
1. Is it **.gov, .edu, .org** or a well-known hospital / NGO?
2. Does it clearly show **who wrote it** and **when it was last reviewed**?
3. Are there **references** to guidelines, journals, or official organizations?
4. Are there **no miracle cures / aggressive product sales**?
5. Does it explicitly say “this is not a substitute for your doctor”?
If it fails these, treat it as low-trust.
7. **Don’t self-diagnose from symptoms alone**
* Symptom checkers are notorious for suggesting rare cancers for common complaints.
* Use sites to **prepare questions** for a doctor, not to decide “I definitely have X”.
8. **Protect your privacy**
* On official sites (NIH, WHO, NHS, HealthHub etc.) you can usually read anonymously.
* Be careful before logging in or entering data into symptom checkers, “AI diagnosis bots” or small unknown apps.
* Avoid posting personally identifiable details about your health in public forums.
9. **Local guidelines can differ**
* Vaccination schedules, cancer screening age, antibiotic choices etc. vary by country.
* Check at least **one site from your own country’s health authority**, not only US/UK sources.
---
### 3-B. 실전 활용 팁 (한국어)
1. **위급 상황은 반드시 “공식 사이트 + 119/응급실” 우선**
* 심한 흉통, 호흡곤란, 중증 외상, 자살 충동, 고열·경련 등은
→ WHO·CDC·NIH·NHS 같은 사이트에서 “대략적인 정보”만 보고, **실제 행동은 119나 응급실 지침**을 따르는 것이 원칙이다.
2. **진단이 나온 뒤에는 병원·백과사전 사이트로 공부**
* “당뇨”, “협심증”, “유방암 2기”처럼 병명을 이미 알고 있다면
→ Mayo, Cleveland Clinic, Johns Hopkins, Healthline, WebMD, MedlinePlus 쪽에서
* 병의 기전
* 검사 종류
* 표준 치료와 부작용
* 생활 관리 방법
을 차분히 읽어 보면서 **의사에게 물어볼 질문 리스트**를 만드는 용도로 쓰는 것이 좋다.
3. **암·심장·당뇨 등은 재단 사이트를 병행**
* American Cancer Society, Cancer Research UK, AHA, ADA, Alzheimer’s Association 등은
* 실제 환자·보호자 관점의 설명
* 식단·운동·심리 지원
* 경제적 지원제도, 상담창구
정보를 잘 정리해 두었기 때문에, **장기적인 생활 관리**를 배우기에 좋다.
4. **희귀질환·피부질환·수면장애는 전문 사이트 + 전문의**
* Orphanet, NORD에서 희귀질환 후보를 찾더라도 **직접 병명을 확정하지 말고**,
“혹시 이런 질환 가능성도 있을까요?” 수준으로 전문가에게 가져가는 것이 안전하다.
* 피부질환은 DermNet 사진이 도움은 되지만, 실제로는 **직접 보고 만지는 진찰**이 매우 중요하다.
* 수면장애(코골이·무호흡·불면)는 Sleep Foundation으로 개념을 잡고, 필요하면 수면다원검사를 생각해야 한다.
5. **자기 진단 금지, 질문 준비용으로 활용**
* 인터넷 정보는 **“진단기(診斷器)”가 아니라 “질문 리스트 생성기”** 정도로 생각하면 안전하다.
* “내가 ○○병이 틀림없다”가 아니라
→ “이런 증상이 있는데, 이런 병들을 검색해 보니 걱정된다. 어떤 검사를 하는 게 좋을까?” 식으로 접근하는 것이 바람직하다.
6. **개인정보·쿠키·로그인을 신중히**
* 공공 사이트는 대체로 안전하지만, 작은 상업 사이트·앱은
* 입력한 증상
* 위치 정보
* 연락처
를 광고·제3자와 공유할 수 있다.
* 회원가입·로그인 전에 **개인정보 처리방침**을 한 번은 확인하는 편이 좋다.
7. **나라별 의료 관행 차이**
* 예방접종 일정, 암검진 권고 나이, 항생제 사용 기준 등은 국가마다 다르다.
* 가능하면 **본인이 살고 있는 나라의 보건부·질병관리청·공단 사이트**를 최소 1곳 이상 함께 참고하는 습관이 좋다.
---
### 3-C. 医療サイトの使い方のポイント（日本語）
1. **まずは公的機関 (.go.jp / .gov / WHO / NHS など) を優先**
* 緊急性のある症状では、とにかく「救急番（119 / 911 など）」と医療機関が最優先。
* ウェブ情報は **「背景知識」レベル** にとどめる。
2. **診断名が分かった後に詳しく読む**
* 持病や診断名がはっきりしている場合は、Mayo, Cleveland Clinic, NIH, MedlinePlus, Healthline などで
* 病気の仕組み
* 標準治療
* 合併症と予防
を確認して、主治医に確認したいポイントをメモしておくとよい。
3. **患者会・チャリティのページで「生活面」を学ぶ**
* がん・心疾患・糖尿病・認知症などは、Cancer Research UK, AHA, ADA, Alzheimer’s Association などが
* 食事・運動
* 仕事・お金の問題
* 介護・家族の悩み
まで実務的に書いていることが多い。
4. **レア疾患や皮膚病は「候補リスト」くらいの気持ちで**
* Orphanet / NORD / DermNet で見つけた病名は、**そのまま自己診断せず**,
「医師に見せるためのメモ」として使うのが安全。
5. **検索のしすぎで不安を増やさない**
* なんでも「がんかも」と書いてあるページばかり読むと、健康不安・うつを悪化させやすい。
* 一度に読む時間を決めて、**必ずオフラインで休憩する時間**をつくる。
---
### 3-D. 使用疾病网站时的实用提示（简体中文）
1. **严重症状 → 先找当地急救与官方信息**
* 胸痛、呼吸困难、中风迹象、严重外伤、自杀念头等
→ 先打当地急救电话和去医院，网站信息只能作为背景说明。
2. **已确诊疾病 → 用医院和百科类网站“读懂诊断书”**
* 已经知道自己是糖尿病、高血压、某种癌症等时，
→ 用 Mayo、Cleveland Clinic、Healthline、MedlinePlus 等来了解：
* 病因与机制
* 检查项目
* 标准治疗方案
* 自我管理方法
3. **用慈善机构网站了解长期照护**
* 癌症、心脏病、糖尿病、阿尔茨海默病、关节炎等
* 大型基金会（Cancer Research UK、AHA、ADA、Alzheimer’s Association 等）对**饮食、运动、护理、经济帮助**讲得更细。
4. **谨慎对待“神药”“偏方”**
* 如果页面充满：
* 夸张标题（100%治愈、奇迹疗法）
* 大量购买按钮
→ 可信度通常很低，应回避。
5. **尊重隐私与数据安全**
* 不要在不熟悉的网站公开自己的姓名、身份证号、精准地址、详细病历。
* 使用症状自测工具时，优先选择大型官方或公立医院平台。
---
이렇게 하면,
* **어디서부터 읽어야 할지** (공식 / 종합 / 특화 사이트),
* **어떤 사이트를 어떤 목적으로 써야 할지**,
* **어디까지 믿고 어디서 의사에게 바통을 넘겨야 할지**
를 한 번에 정리해서 볼 수 있다.
필요할 때는 위 **Top 50 목록을 즐겨찾기** 해 두고,
* 급할 땐 WHO·질병관리청·NHS 계열
* 진단 후 공부는 Mayo·NIH·MedlinePlus
* 장기 관리·생활은 각 질병 재단·정신건강·수면·소아 사이트
이런 식으로 역할을 나눠서 사용하는 것이 가장 안전하고 효율적이다.
[1]: https://www.similarweb.com/top-websites/health/ "Top Health Websites Ranking | Similarweb"
[2]: https://www.who.int/?utm_source=chatgpt.com "World Health Organization (WHO)"
[3]: https://www.refseek.com/directory/health_medical.html "25 Best Health & Medical Information Sites"
[4]: https://www.nimh.nih.gov/?utm_source=chatgpt.com "National Institute of Mental Health (NIMH) - Transforming ... - NIH"
[5]: https://openmd.com/directory/reference "30 Best Health & Medical Information Sites"
[6]: https://medlineplus.gov/organizations/orgbytopic_a.html?utm_source=chatgpt.com "Organizations by topic beginning with A"
[7]: https://library.hee.nhs.uk/patient-information/health-information-online/health-information-online/websites-you-can-trust "Health information online | Knowledge and Library Services"
[8]: https://www.ecdc.europa.eu/en?utm_source=chatgpt.com "Homepage | European Centre for Disease Prevention and ..."
[9]: https://www.canada.ca/en/public-health.html?utm_source=chatgpt.com "Public Health Agency of Canada"
[10]: https://www.cancer.org.au/?utm_source=chatgpt.com "Cancer Council: Cancer information and support"
[11]: https://www.healthhub.sg/?utm_source=chatgpt.com "Health Hub"
[12]: https://medlineplus.gov/organizations/all_organizations.html?utm_source=chatgpt.com "Organizations"
[13]: https://www.cdisc.org/standards/therapeutic-areas/disease-area?utm_source=chatgpt.com "Therapeutic Areas by Disease Area"
[14]: https://www.macmillan.org.uk/?utm_source=chatgpt.com "Macmillan Cancer Support | The UK's leading cancer care ..."
[15]: https://www.nccn.org/patientresources/patient-resources/guidelines-for-patients?utm_source=chatgpt.com "Guidelines for Patients"
[16]: https://www.orpha.net/?utm_source=chatgpt.com "Orphanet"
[17]: https://rarediseases.org/?utm_source=chatgpt.com "National Organization for Rare Disorders | NORD"
[18]: https://dermnetnz.org/?utm_source=chatgpt.com "DermNet"
[19]: https://www.sleepfoundation.org/?utm_source=chatgpt.com "Sleep Foundation: Sleep Advice, Mattress & Product Reviews"
[20]: https://www.mind.org.uk/?utm_source=chatgpt.com "We're Mind, the mental health charity | Mind"
[21]: https://www.healthychildren.org/English/our-mission/Pages/default.aspx?utm_source=chatgpt.com "About HealthyChildren.org"
**전 세계 질병·건강 정보 사이트 Top 50 (2025 기준)**
---
> ⚕️ **Important / 중요 안내**
> This is **information only**, not medical advice. Always confirm with a qualified doctor or local health authority before making decisions about tests, medicines, or treatment.
---
## 1. What this “Top 50” actually means
### EN
* I combined **global traffic rankings** (Similarweb etc.), curated expert lists (OpenMD, NHS “trusted sites”, etc.) and the **reputation / authority** of organizations (WHO, NIH, cancer charities…). ([Similarweb][1])
* The **order (1–50)** is **approximate**, not a strict “official” ranking. I put:
1–16: global & government / public-health sites
17–31: large hospital & general medical encyclopedias
32–43: big disease-specific organizations (cancer, heart, diabetes, etc.)
44–50: rare-disease, skin, sleep, mental health, child health
* All sites are **relatively trustworthy** compared with random blogs or commercial pages, but you still need to read critically.
### KO
* 전 세계 **트래픽(방문자 수) 통계**, 전문 사이트 모음(예: OpenMD, NHS 추천 사이트 등) 그리고 **기관의 공신력(WHO, NIH, 각종 암·심장·당뇨 재단 등)**을 종합해서 추린 리스트다. ([Similarweb][1])
* **1~50위 순서는 대략적인 중요도·영향력 순서**일 뿐, 공식 순위표는 아니다.
* 1~16위: WHO·정부·공공 보건 사이트
* 17~31위: 대형 병원·종합 의학 백과·뉴스
* 32~43위: 암·심장·당뇨 등 **질병 특화 재단/단체**
* 44~50위: 희귀질환·피부·수면·정신건강·소아 건강
* 무작위 블로그보다 훨씬 신뢰도가 높지만, **어디까지나 참고용**으로 보고 항상 비판적으로 읽어야 한다.
### JA
* 世界的な**アクセス数ランキング**、専門家による推奨リスト（NHS・OpenMD など）、WHO や NIH などの**公的機関の権威性**を組み合わせて作った「実用トップ50」です。
* **1〜50位の順番はおおよその重要度・影響力順**であり、公式ランキングではありません。
* いずれも比較的信頼できる情報源ですが、**最終判断は必ず医師と相談**してください。
### ZH
* 本榜单综合了**全球流量排行**、专业推荐列表（如 OpenMD、NHS 推荐网站等）以及 WHO、NIH 等机构的**权威性**，整理出一个“实用 Top 50”。 ([Similarweb][1])
* **1–50 的顺序是大致的“重要度＋影响力”排序，并不是官方排名。**
* 这些网站整体上比普通博客可信得多，但依然只能作为**参考信息**，真正的诊断与治疗一定要听医生的。
---
## 2. Global Top 50 Disease & Health Sites (2025, curated ranking)
> 설명은 **영어로**, 사이트 이름·도메인은 그대로 두었습니다.
> (질병 이름·용어는 각 사이트에서 언어를 바꾸어 볼 수 있는 곳도 많습니다.)
### 1–16: Global & Government / Public Health
1. **World Health Organization (WHO) – `who.int`**
UN’s specialized health agency. Global disease outbreaks, vaccination policy, health statistics & topic fact sheets. ([세계보건기구][2])
2. **National Institutes of Health (NIH, USA) – `nih.gov`**
World-leading biomedical research agency; huge A-Z library on diseases, clinical trials and health topics. ([Similarweb][1])
3. **Centers for Disease Control and Prevention (CDC, USA) – `cdc.gov`**
Infectious disease surveillance, travel health, vaccination schedules, and detailed guidelines for professionals & public. ([refseek.com][3])
4. **National Institute of Mental Health (NIMH, USA) – `nimh.nih.gov`**
Mental disorders (depression, anxiety, bipolar etc.), statistics and brochures; strong focus on evidence-based mental health information. ([정신 건강 연구소][4])
5. **MedlinePlus (U.S. National Library of Medicine) – `medlineplus.gov`**
One of the best consumer health encyclopedias: diseases, drugs, lab tests, surgery, videos, many languages. ([OpenMD][5])
6. **National Cancer Institute (NCI, USA) – `cancer.gov`**
NIH center dedicated to cancer: types of cancer, staging, treatment options, clinical trials, statistics. ([MedlinePlus][6])
7. **health.gov (Office of Disease Prevention and Health Promotion, USA) – `health.gov`**
Official guidelines on nutrition, physical activity, preventive care & public-health campaigns. ([OpenMD][5])
8. **NHS (United Kingdom) – `nhs.uk`**
Official UK health site: conditions, symptoms, medicines, “what to do” for common emergencies; widely recommended as a trusted source. ([library.hee.nhs.uk][7])
9. **NHS inform (Scotland) – `nhsinform.scot`**
Scotland’s official health information and self-help advice, aligned with NHS standards. ([OpenMD][5])
10. **European Centre for Disease Prevention and Control (ECDC) – `ecdc.europa.eu`**
EU-level infectious disease monitoring, risk assessments and technical reports – very strong on outbreaks and epidemiology. ([ECDC][8])
11. **Public Health Agency of Canada (PHAC) – `canada.ca/en/public-health.html`**
National infectious-disease guidance, chronic disease prevention, travel health advisories for Canada. ([캐나다][9])
12. **Health Canada – `canada.ca/en/health-canada.html`**
Info on medicines, medical devices, food safety, environmental health and regulations affecting patients. ([캐나다][9])
13. **Healthdirect Australia – `healthdirect.gov.au`**
Government-funded triage and health information service; symptom checker and high-quality disease pages. ([Similarweb][1])
14. **Better Health Channel (Victoria, Australia) – `betterhealth.vic.gov.au`**
Evidence-based consumer health articles created by Victorian State Government; often cited as a model gov health site. ([Similarweb][1])
15. **Cancer Council Australia – `cancer.org.au`**
Australia’s peak independent cancer authority; very strong on cancer prevention, screening, and detailed cancer-type pages. ([cancer.org.au][10])
16. **HealthHub (Singapore) – `healthhub.sg`**
National digital health platform; conditions A–Z, lifestyle programmes, plus access to personal health records. ([HealthHub][11])
---
### 17–31: Major Hospitals & General Medical Encyclopedias
17. **Mayo Clinic – `mayoclinic.org`**
Famous US nonprofit hospital; very detailed disease pages with symptoms, causes, tests and treatment options. ([Similarweb][1])
18. **Cleveland Clinic – `clevelandclinic.org`**
Leading academic medical center; condition and procedure explanations, especially strong in heart & neurology. ([Similarweb][1])
19. **Johns Hopkins Medicine Health Library – `hopkinsmedicine.org/health`**
US academic center; disease explainers, surgery overviews, and “living with” chronic conditions.
20. **Healthline – `healthline.com`**
One of the most visited consumer medical sites; articles are medically reviewed and updated regularly. ([Similarweb][1])
21. **WebMD – `webmd.com`**
Large medical news & encyclopedia portal; symptom checker, drug info, condition overviews. ([Similarweb][1])
22. **Verywell Health – `verywellhealth.com`**
Plain-language guides for common diseases, procedures and tests; good for lay readers. ([OpenMD][5])
23. **Medical News Today – `medicalnewstoday.com`**
Mixture of disease explainers and coverage of new studies – helpful for seeing current research trends. ([Similarweb][1])
24. **Everyday Health – `everydayhealth.com`**
Focus on chronic diseases (diabetes, heart disease, arthritis) and practical self-management tips. ([OpenMD][5])
25. **Patient.info – `patient.info`**
UK-based; many GP-style leaflets on conditions, investigations and treatments, including professional versions. ([OpenMD][5])
26. **StatPearls – `statpearls.com`**
Peer-reviewed medical articles mainly for professionals; very detailed, but open access and good for deep dives. ([OpenMD][5])
27. **Merck Manuals / MSD Manuals – `msdmanuals.com` / `merckmanuals.com`**
Classic medical reference; has both professional and consumer versions of disease entries. ([Similarweb][1])
28. **Medscape – `medscape.com`**
Clinical reference, drug monographs and medical news; professional focus but useful if you can handle technical language. ([OpenMD][5])
29. **UpToDate – `uptodate.com`**
Subscription evidence-based clinical reference; has patient education pages that many hospitals link to. ([OpenMD][5])
30. **OpenMD – `openmd.com`**
Meta-search engine that indexes thousands of medical journals & trusted health websites, and also curates “Top health & medical websites” lists. ([OpenMD][5])
31. **InformedHealth (IQWiG, Germany) – `informedhealth.org`**
Evidence-based summaries of diseases and treatments from Germany’s health-technology assessment institute.
32. **HealthCentral – `healthcentral.com`**
Community-oriented site; focuses on living with chronic illness and patient stories plus expert content.
---
### 32–43: Large Disease-Specific Organizations (Cancer, Heart, Diabetes, etc.)
32. **American Cancer Society – `cancer.org`**
US nationwide cancer charity; patient-friendly info on types of cancer, screening and survivorship. ([MedlinePlus][12])
33. **Cancer Research UK – `cancerresearchuk.org`**
Major UK cancer charity; detailed cancer type pages, statistics and risk factor information. ([cdisc.org][13])
34. **Macmillan Cancer Support – `macmillan.org.uk`**
UK charity providing cancer information plus strong focus on financial, emotional and practical support. ([Macmillan Cancer Support][14])
35. **National Comprehensive Cancer Network (NCCN) – `nccn.org`**
Coalition of US cancer centers; publishes highly respected clinical guidelines and free patient-friendly guideline books. ([nccn.org][15])
36. **American Heart Association – `heart.org`**
Heart disease & stroke information, prevention campaigns, patient education materials.
37. **British Heart Foundation – `bhf.org.uk`**
UK charity focused on heart and circulatory diseases; explains conditions, tests and lifestyle changes.
38. **National Kidney Foundation – `kidney.org`**
Chronic kidney disease, dialysis, transplantation and prevention resources for patients and caregivers.
39. **American Diabetes Association – `diabetes.org`**
Diabetes (type 1, type 2, gestational) education, meal planning, complications and standards of care.
40. **Diabetes UK – `diabetes.org.uk`**
UK diabetes charity; self-management resources, diet, exercise and complication prevention.
41. **American Lung Association – `lung.org`**
Lung diseases (asthma, COPD, lung cancer, infections), air quality and smoking-cessation support.
42. **Alzheimer’s Association – `alz.org`**
Alzheimer’s disease and other dementias: symptoms, stages, caregiving, and local support services.
43. **Arthritis Foundation – `arthritis.org`**
Arthritis and related rheumatic diseases; pain management, exercise guidance and community support.
---
### 44–50: Rare Diseases, Skin, Sleep, Mental & Child Health
44. **Orphanet – `orpha.net`**
Probably the most important global rare-disease portal: inventory & encyclopedia for 6000+ rare diseases, plus orphan-drug information. ([orpha.net][16])
45. **National Organization for Rare Disorders (NORD) – `rarediseases.org`**
US rare-disease umbrella group: disease database, patient assistance, advocacy and links to support groups. ([National Organization for Rare Disorders][17])
46. **DermNet NZ – `dermnetnz.org`**
World-leading free dermatology website; A–Z of skin diseases with thousands of clinical photos. ([DermNet®][18])
47. **Sleep Foundation – `sleepfoundation.org`**
Sleep disorders, sleep hygiene and science-based advice on improving sleep; includes statistics and FAQs. ([Sleep Foundation][19])
48. **Mind (UK mental health charity) – `mind.org.uk`**
Very approachable information on mental health problems, treatments, self-help tips and legal rights in England & Wales. ([mind.org.uk][20])
49. **HealthyChildren.org (American Academy of Pediatrics) – `healthychildren.org`**
Child and adolescent health site, backed by ~67,000 pediatricians; covers common illnesses, vaccines, safety and development. ([HealthyChildren.org][21])
50. **StatPearls / professional cross-check (already #26 but crucial use-case)**
For doctors, nurses and students, StatPearls and similar professional resources are excellent **secondary checks** for complex or rare conditions; non-professionals should be careful because content is quite technical.
---
## 3. How to use these disease sites *safely & effectively*
### 3-A. Practical tips (English)
1. **Start with official or .gov / big NGO sites for serious issues**
* Sudden high fever, suspected stroke, heart attack, poisoning, suicide risk etc. → Start with **WHO, CDC, NIH, NHS, Healthdirect, HealthHub** or your own country’s public-health site.
* These give **triage** style advice: “Call emergency now / see a doctor today / OK to self-care”.
2. **Use hospital / encyclopedias to understand your diagnosis**
* Once you *already* have a diagnosis (“type 2 diabetes”, “ulcerative colitis”, “breast cancer stage II”), sites like **Mayo, Cleveland Clinic, Johns Hopkins, Healthline, WebMD, MedlinePlus** are good for:
* What the disease is
* Typical tests
* Treatment options and side-effects
* Long-term self-management
3. **Use disease-specific charities for real-life management**
* Cancer, heart disease, diabetes, dementia, arthritis etc. → the big charities (Cancer Research UK, AHA, ADA, Alzheimer’s Association…) often explain:
* What daily life looks like
* Diet & exercise tips that are actually realistic
* Financial, psychological, caregiver support
4. **Rare, skin, and “strange symptoms”**
* Very unusual or undiagnosed conditions → **Orphanet, NORD** can show possible rare diseases, but do **not** self-diagnose; take names to your specialist.
* Skin problems → **DermNet** helps you *see* patterns and read common diagnoses, but only a dermatologist can confirm.
* Chronic insomnia, snoring, suspected sleep apnea → **Sleep Foundation** is good for sleep hygiene and explaining formal sleep disorders; you still may need a sleep study.
5. **Mental health**
* For understanding depression, anxiety, psychosis etc. in English: **NIMH**, **Mind**, and national mental-health organizations in your country are safer than random social-media advice.
* For **suicidal thoughts or self-harm**, online reading is not enough: contact local emergency services or crisis hotlines immediately.
6. **Check quality quickly with a 5-point filter**
1. Is it **.gov, .edu, .org** or a well-known hospital / NGO?
2. Does it clearly show **who wrote it** and **when it was last reviewed**?
3. Are there **references** to guidelines, journals, or official organizations?
4. Are there **no miracle cures / aggressive product sales**?
5. Does it explicitly say “this is not a substitute for your doctor”?
If it fails these, treat it as low-trust.
7. **Don’t self-diagnose from symptoms alone**
* Symptom checkers are notorious for suggesting rare cancers for common complaints.
* Use sites to **prepare questions** for a doctor, not to decide “I definitely have X”.
8. **Protect your privacy**
* On official sites (NIH, WHO, NHS, HealthHub etc.) you can usually read anonymously.
* Be careful before logging in or entering data into symptom checkers, “AI diagnosis bots” or small unknown apps.
* Avoid posting personally identifiable details about your health in public forums.
9. **Local guidelines can differ**
* Vaccination schedules, cancer screening age, antibiotic choices etc. vary by country.
* Check at least **one site from your own country’s health authority**, not only US/UK sources.
---
### 3-B. 실전 활용 팁 (한국어)
1. **위급 상황은 반드시 “공식 사이트 + 119/응급실” 우선**
* 심한 흉통, 호흡곤란, 중증 외상, 자살 충동, 고열·경련 등은
→ WHO·CDC·NIH·NHS 같은 사이트에서 “대략적인 정보”만 보고, **실제 행동은 119나 응급실 지침**을 따르는 것이 원칙이다.
2. **진단이 나온 뒤에는 병원·백과사전 사이트로 공부**
* “당뇨”, “협심증”, “유방암 2기”처럼 병명을 이미 알고 있다면
→ Mayo, Cleveland Clinic, Johns Hopkins, Healthline, WebMD, MedlinePlus 쪽에서
* 병의 기전
* 검사 종류
* 표준 치료와 부작용
* 생활 관리 방법
을 차분히 읽어 보면서 **의사에게 물어볼 질문 리스트**를 만드는 용도로 쓰는 것이 좋다.
3. **암·심장·당뇨 등은 재단 사이트를 병행**
* American Cancer Society, Cancer Research UK, AHA, ADA, Alzheimer’s Association 등은
* 실제 환자·보호자 관점의 설명
* 식단·운동·심리 지원
* 경제적 지원제도, 상담창구
정보를 잘 정리해 두었기 때문에, **장기적인 생활 관리**를 배우기에 좋다.
4. **희귀질환·피부질환·수면장애는 전문 사이트 + 전문의**
* Orphanet, NORD에서 희귀질환 후보를 찾더라도 **직접 병명을 확정하지 말고**,
“혹시 이런 질환 가능성도 있을까요?” 수준으로 전문가에게 가져가는 것이 안전하다.
* 피부질환은 DermNet 사진이 도움은 되지만, 실제로는 **직접 보고 만지는 진찰**이 매우 중요하다.
* 수면장애(코골이·무호흡·불면)는 Sleep Foundation으로 개념을 잡고, 필요하면 수면다원검사를 생각해야 한다.
5. **자기 진단 금지, 질문 준비용으로 활용**
* 인터넷 정보는 **“진단기(診斷器)”가 아니라 “질문 리스트 생성기”** 정도로 생각하면 안전하다.
* “내가 ○○병이 틀림없다”가 아니라
→ “이런 증상이 있는데, 이런 병들을 검색해 보니 걱정된다. 어떤 검사를 하는 게 좋을까?” 식으로 접근하는 것이 바람직하다.
6. **개인정보·쿠키·로그인을 신중히**
* 공공 사이트는 대체로 안전하지만, 작은 상업 사이트·앱은
* 입력한 증상
* 위치 정보
* 연락처
를 광고·제3자와 공유할 수 있다.
* 회원가입·로그인 전에 **개인정보 처리방침**을 한 번은 확인하는 편이 좋다.
7. **나라별 의료 관행 차이**
* 예방접종 일정, 암검진 권고 나이, 항생제 사용 기준 등은 국가마다 다르다.
* 가능하면 **본인이 살고 있는 나라의 보건부·질병관리청·공단 사이트**를 최소 1곳 이상 함께 참고하는 습관이 좋다.
---
### 3-C. 医療サイトの使い方のポイント（日本語）
1. **まずは公的機関 (.go.jp / .gov / WHO / NHS など) を優先**
* 緊急性のある症状では、とにかく「救急番（119 / 911 など）」と医療機関が最優先。
* ウェブ情報は **「背景知識」レベル** にとどめる。
2. **診断名が分かった後に詳しく読む**
* 持病や診断名がはっきりしている場合は、Mayo, Cleveland Clinic, NIH, MedlinePlus, Healthline などで
* 病気の仕組み
* 標準治療
* 合併症と予防
を確認して、主治医に確認したいポイントをメモしておくとよい。
3. **患者会・チャリティのページで「生活面」を学ぶ**
* がん・心疾患・糖尿病・認知症などは、Cancer Research UK, AHA, ADA, Alzheimer’s Association などが
* 食事・運動
* 仕事・お金の問題
* 介護・家族の悩み
まで実務的に書いていることが多い。
4. **レア疾患や皮膚病は「候補リスト」くらいの気持ちで**
* Orphanet / NORD / DermNet で見つけた病名は、**そのまま自己診断せず**,
「医師に見せるためのメモ」として使うのが安全。
5. **検索のしすぎで不安を増やさない**
* なんでも「がんかも」と書いてあるページばかり読むと、健康不安・うつを悪化させやすい。
* 一度に読む時間を決めて、**必ずオフラインで休憩する時間**をつくる。
---
### 3-D. 使用疾病网站时的实用提示（简体中文）
1. **严重症状 → 先找当地急救与官方信息**
* 胸痛、呼吸困难、中风迹象、严重外伤、自杀念头等
→ 先打当地急救电话和去医院，网站信息只能作为背景说明。
2. **已确诊疾病 → 用医院和百科类网站“读懂诊断书”**
* 已经知道自己是糖尿病、高血压、某种癌症等时，
→ 用 Mayo、Cleveland Clinic、Healthline、MedlinePlus 等来了解：
* 病因与机制
* 检查项目
* 标准治疗方案
* 自我管理方法
3. **用慈善机构网站了解长期照护**
* 癌症、心脏病、糖尿病、阿尔茨海默病、关节炎等
* 大型基金会（Cancer Research UK、AHA、ADA、Alzheimer’s Association 等）对**饮食、运动、护理、经济帮助**讲得更细。
4. **谨慎对待“神药”“偏方”**
* 如果页面充满：
* 夸张标题（100%治愈、奇迹疗法）
* 大量购买按钮
→ 可信度通常很低，应回避。
5. **尊重隐私与数据安全**
* 不要在不熟悉的网站公开自己的姓名、身份证号、精准地址、详细病历。
* 使用症状自测工具时，优先选择大型官方或公立医院平台。
---
이렇게 하면,
* **어디서부터 읽어야 할지** (공식 / 종합 / 특화 사이트),
* **어떤 사이트를 어떤 목적으로 써야 할지**,
* **어디까지 믿고 어디서 의사에게 바통을 넘겨야 할지**
를 한 번에 정리해서 볼 수 있다.
필요할 때는 위 **Top 50 목록을 즐겨찾기** 해 두고,
* 급할 땐 WHO·질병관리청·NHS 계열
* 진단 후 공부는 Mayo·NIH·MedlinePlus
* 장기 관리·생활은 각 질병 재단·정신건강·수면·소아 사이트
이런 식으로 역할을 나눠서 사용하는 것이 가장 안전하고 효율적이다.
[1]: https://www.similarweb.com/top-websites/health/ "Top Health Websites Ranking | Similarweb"
[2]: https://www.who.int/?utm_source=chatgpt.com "World Health Organization (WHO)"
[3]: https://www.refseek.com/directory/health_medical.html "25 Best Health & Medical Information Sites"
[4]: https://www.nimh.nih.gov/?utm_source=chatgpt.com "National Institute of Mental Health (NIMH) - Transforming ... - NIH"
[5]: https://openmd.com/directory/reference "30 Best Health & Medical Information Sites"
[6]: https://medlineplus.gov/organizations/orgbytopic_a.html?utm_source=chatgpt.com "Organizations by topic beginning with A"
[7]: https://library.hee.nhs.uk/patient-information/health-information-online/health-information-online/websites-you-can-trust "Health information online | Knowledge and Library Services"
[8]: https://www.ecdc.europa.eu/en?utm_source=chatgpt.com "Homepage | European Centre for Disease Prevention and ..."
[9]: https://www.canada.ca/en/public-health.html?utm_source=chatgpt.com "Public Health Agency of Canada"
[10]: https://www.cancer.org.au/?utm_source=chatgpt.com "Cancer Council: Cancer information and support"
[11]: https://www.healthhub.sg/?utm_source=chatgpt.com "Health Hub"
[12]: https://medlineplus.gov/organizations/all_organizations.html?utm_source=chatgpt.com "Organizations"
[13]: https://www.cdisc.org/standards/therapeutic-areas/disease-area?utm_source=chatgpt.com "Therapeutic Areas by Disease Area"
[14]: https://www.macmillan.org.uk/?utm_source=chatgpt.com "Macmillan Cancer Support | The UK's leading cancer care ..."
[15]: https://www.nccn.org/patientresources/patient-resources/guidelines-for-patients?utm_source=chatgpt.com "Guidelines for Patients"
[16]: https://www.orpha.net/?utm_source=chatgpt.com "Orphanet"
[17]: https://rarediseases.org/?utm_source=chatgpt.com "National Organization for Rare Disorders | NORD"
[18]: https://dermnetnz.org/?utm_source=chatgpt.com "DermNet"
[19]: https://www.sleepfoundation.org/?utm_source=chatgpt.com "Sleep Foundation: Sleep Advice, Mattress & Product Reviews"
[20]: https://www.mind.org.uk/?utm_source=chatgpt.com "We're Mind, the mental health charity | Mind"
[21]: https://www.healthychildren.org/English/our-mission/Pages/default.aspx?utm_source=chatgpt.com "About HealthyChildren.org"