Check liver function bilirubin high may be related to living habits, drugs and liver diseases (such as chronic active hepatitis). 1. Lifestyle habits: bad lifestyle habits, such as smoking, drinking, staying up late for a long time, etc. will cause the body’s immune system to decline, resulting in the liver does not get enough rest, and may even cause some damage to the liver, resulting in elevated bilirubin. 2. Drugs: long-term use of cold medicine (such as compound aminophenolamine tablets), anti-tuberculosis drugs (such as isoniazid), etc., will cause liver damage, which will also cause elevated bilirubin. 3. Liver diseases: such as chronic active hepatitis, because the patient’s liver is damaged, so the ability of free bilirubin to convert into pooled bilirubin conductance decreases, and the excretion of bile also decreases, so bilirubin will be high. Patients with high bilirubin, if it is not caused by bad habits, it is recommended to consult a doctor in a timely manner, after a clear examination, targeted treatment.