# WHO Hepatitis B Fact Sheet

WHO 关于乙肝传播、预防、疫苗、检测、治疗和全球公共卫生影响的概览。

- Original URL: https://www.who.int/news-room/fact-sheets/detail/hepatitis-b
- Organization: World Health Organization
- Country or region: Global
- Language: en
- Source type: fact_sheet
- Published: 
- Source updated: 
- Last checked: 2026-06-26
- Credibility note: 权威公共卫生来源

## Related Articles

- [First steps after learning you may have hepatitis B](https://openhbv.com/articles/first-steps-after-learning-you-may-have-hepatitis-b.md?locale=en) — A calm starting point after an unexpected HBV result: check the report, avoid panic, and prepare useful questions for care.
- [What to do after a positive HBsAg result](https://openhbv.com/articles/what-to-do-after-a-positive-hbsag-result.md?locale=en) — What a positive HBsAg result may mean, what follow-up tests are commonly discussed, and what not to decide from one marker alone.
- [How hepatitis B vaccination protects people](https://openhbv.com/articles/how-hepatitis-b-vaccination-protects-people.md?locale=en) — How hepatitis B vaccine, anti-HBs, vaccine records, family catch-up vaccination, and post-exposure questions fit together.
- [Living with a partner or family member who has hepatitis B](https://openhbv.com/articles/living-with-a-partner-or-family-member-who-has-hepatitis-b.md?locale=en) — What everyday contact does not spread hepatitis B, what blood exposure means, and how vaccinated family members can keep prevention practical.
- [HBsAg positive during pregnancy: a prevention checklist for parent-to-child transmission](https://openhbv.com/articles/hbsag-positive-during-pregnancy-a-prevention-checklist-for-parent-to-child-transmission.md?locale=en) — A practical checklist for pregnancy care, delivery preparation, newborn hepatitis B vaccination, HBIG, and follow-up testing.
- [Children and teenagers with hepatitis B: school, sports, follow-up, and a parent checklist](https://openhbv.com/articles/children-and-teenagers-with-hepatitis-b-school-sports-follow-up-and-a-parent-checklist.md?locale=en) — A practical guide for parents on pediatric HBV follow-up, school and sports participation, privacy, household vaccination, and age-appropriate conversations.
- [Hepatitis B and fatty liver: managing weight, food, and exercise together](https://openhbv.com/articles/hepatitis-b-and-fatty-liver-managing-weight-food-and-exercise-together.md?locale=en) — Helps people with chronic hepatitis B understand why fatty liver, weight, blood sugar, lipids, diet, and movement matter for long-term liver health.
- [Hepatitis B symptoms: when not to wait for the next follow-up](https://openhbv.com/articles/hepatitis-b-symptoms-when-not-to-wait-for-the-next-follow-up.md?locale=en) — A practical guide to common hepatitis B and liver disease symptoms, urgent warning signs, and what reports and medicines to bring before care.
- [Hepatitis B and alcohol: why reducing or avoiding alcohol deserves serious attention](https://openhbv.com/articles/hepatitis-b-and-alcohol-why-reducing-or-avoiding-alcohol-deserves-serious-attention.md?locale=en) — Explains why alcohol is an important liver risk factor for people with chronic hepatitis B and gives practical steps for tracking, reducing, and discussing alcohol use.
- [HBV DNA is undetectable: why do I still need hepatitis B medicine?](https://openhbv.com/articles/hbv-dna-undetectable-continue-treatment-en.md?locale=en) — Understand why undetectable HBV DNA does not automatically mean treatment can stop, and what to ask your doctor.

This page is a source record, not medical advice. Use the original source URL above to verify claims, publication details, updates, and scope. OpenHBV records the last checked date so readers and LLM retrieval systems can judge freshness.