How long one can live with autoimmune hepatitis at the age of 24 depends on the severity of the current disease and whether treatment is timely and effective. The disease is a chronic, progressive, inflammatory disease of the liver mediated by an autoimmune response that may progress rapidly to cirrhosis and liver failure in severe cases, with a highly variable prognosis. If patients do not undergo timely and effective treatment with hormones, they may gradually progress to cirrhosis, or develop acute, subacute, or fulminant liver disease, and may eventually die from various complications, with a possible 3-year survival rate of 50% and a 5-year survival rate of only 10%. However, if patients can cooperate with regular and timely treatment, the 20-year survival rate can reach about 80%, and the life cycle may not be significantly different from that of normal people. In the active phase of autoimmune hepatitis, inflammatory damage to the liver generally progresses more rapidly, and patients are advised to go to a hospital liver disease specialist for treatment as soon as they are diagnosed to avoid delaying treatment.