Hepatitis B can cause chronic infection in the body, which may damage liver cells and potentially lead to liver cirrhosis or liver cancer. Therefore, in cases of hepatitis B virus infection, it is necessary to regularly check liver function and hepatitis B virus DNA. If abnormal transaminase levels are found, timely liver-protective and enzyme-lowering treatments should be administered. If the hepatitis B virus DNA reaches a certain level, antiviral treatment should be initiated to potentially slow the progression of hepatitis B developing into liver cirrhosis or even liver cancer. Additionally, carriers of the hepatitis B virus or patients with hepatitis B should take care to rest adequately, avoid excessive fatigue and staying up late, abstain from alcohol, and maintain a light, digestible diet.