Symptoms of Hepatitis A include fatigue, poor appetite, nausea, etc. Hepatitis A usually does not cause great harm, but if it develops into severe hepatitis, hepatic encephalopathy, hepatorenal syndrome, etc., which can seriously jeopardize health. Hepatitis A is an acute infectious disease caused by infection with hepatitis A virus. If children are infected with hepatitis A, there are usually no obvious symptoms, and jaundice may appear in a few children. If an adult is infected with hepatitis B, symptoms such as fatigue, poor appetite, nausea and anorexia may occur. Since acute hepatitis A is a self-limiting disease, it can also be completely cured and the damage to liver tissue can be completely recovered, so it usually does not cause greater harm to patients. However, in a few cases, hepatitis A may develop into severe hepatitis, leading to serious complications such as hepatic encephalopathy, hepatorenal syndrome and infections. If the above symptoms occur, it is recommended that the patient should consult a doctor for examination and actively cooperate with the doctor for treatment, so as to prevent the disease from developing into severe hepatitis, which will jeopardize his/her health.