Hepatitis B is known as viral hepatitis B. Hepatitis B has not yet been completely conquered. Hepatitis B is mainly infected through mother-to-child transmission, most people infected with hepatitis B are only hepatitis B virus carriers, a small number of the onset of hepatitis B patients, there are also a part of hepatitis B patients do not get effective control, the disease further develops into cirrhosis of the liver after hepatitis B, or even liver cancer. Hepatitis B can be controlled, currently through the vaccination of hepatitis B vaccine is the main way to prevent and control the spread of hepatitis B in China. Susceptible people can be vaccinated, newborns are commonly vaccinated, and the dose can be increased for those who are in close contact with hepatitis B virus-infected people, medical workers, homosexuals, drug addicts and other high-risk groups, and those who are engaged in nursery care, food processing, food service and other occupational groups. Hepatitis B has not yet been completely conquered and it is not yet possible to completely remove the hepatitis B virus. When hepatitis B develops, the maximum long-term suppression of viral replication is usually achieved through medication to reduce liver tissue lesions and improve quality of life, and common medications include interferon alpha, tenofovir, entecavir, and tibivudine. If you have had close contact with a person with hepatitis B recently, or if you feel fatigue, weakness, discomfort in the liver area, and other serious, persistent, or progressive signs and symptoms, you should go to the hospital in a timely manner.