Autoimmune hepatitis is inflammation of the liver due to autoimmune dysfunction and immune cells attacking liver tissue. there are several more important special signs: 1. positive antibodies against autoimmune hepatitis can be seen, such as anti-smooth muscle antibodies, positive anti-liver and kidney microsomal antibodies, etc. 2. in liver function, the main manifestations are elevated globulin, elevated transaminases, elevated immunoglobulin IgG. 3. The diagnosis of autoimmune hepatitis needs to exclude other viral hepatitis infections, alcoholic liver disease, drug-related hepatitis, fatty liver, etc. The diagnosis of autoimmune hepatitis is based on the presence of plasma cell infiltration and even the formation of roseola-like nodules. Treatment of autoimmune hepatitis basically involves the use of hormones, or hormones combined with immunosuppressants such as azathioprine.