Autoimmune hepatitis is a chronic liver disease in which the body’s own immune system attacks the liver cells. It is the most common form of liver disease in children and young adults, and can have severe consequences if left untreated. The cause of autoimmune hepatitis is unknown, but it is believed to be triggered by a combination of genetic and environmental factors. The most common symptoms of autoimmune hepatitis are fatigue, jaundice, abdominal pain, and dark-colored urine. Other symptoms may include joint pain, loss of appetite, nausea, vomiting, and weight loss. In some cases, the disease can cause cirrhosis, a condition in which the liver becomes permanently damaged. Diagnosis of autoimmune hepatitis is usually based on a combination of blood tests, imaging tests, and a physical exam. Treatment typically involves steroid medications, such as prednisone, to reduce inflammation and suppress the immune system. In some cases, other medications such as azathioprine or methotrexate may be prescribed to control the disease. It is important to note that autoimmune hepatitis is a chronic condition and can recur even after successful treatment. Therefore, it is important for individuals with this condition to be monitored regularly by their healthcare provider.