Viral hepatitis such as hepatitis A, hepatitis B, hepatitis C, hepatitis D and hepatitis E are contagious and can affect those around them and should be protected against. Other types of hepatitis such as alcoholic hepatitis, drug-related hepatitis, steatohepatitis and autoimmune hepatitis are usually not contagious and can be cured with aggressive treatment, so patients and their families need not worry too much. For example, hepatitis A and E are mainly transmitted through the fecal-oral route; hepatitis B, C and D are mainly transmitted through blood, body fluids, sex and mother-to-child transmission. Therefore, it is recommended that these patients should pay attention to contact with people around them, such as avoiding sharing personal items such as toothbrushes and towels with others; using a meal sharing system; and avoiding public bathrooms and swimming pools. Especially if the patient has skin lesions or mouth ulcers, extra attention should be paid to the above points to prevent the spread of the disease. In addition, active hepatitis vaccination, less crowded places and poor sanitation, limiting alcohol consumption, and avoiding drug abuse are helpful in preventing hepatitis. Patients who have been diagnosed with hepatitis should be treated actively to improve the prognosis and avoid aggravation of the disease.