Hepatogenic diabetes mellitus is diabetes mellitus caused by damage to the patient’s liver. It can be judged by medical history, laboratory test results and clinical symptoms. 1. Medical history: Before or at the onset of diabetes mellitus, the patient has existing liver diseases, such as cirrhosis, hepatic encephalopathy, chronic hepatitis and other diseases. 2. Laboratory test results: the patient’s liver function is obviously impaired, and some patients may also have increased bilirubin, leukocytes, platelets, etc. 3. Clinical symptoms: patients are often accompanied by digestive symptoms, such as loss of appetite, abdominal distension, discomfort in the liver area, etc. In addition, it may be accompanied by spider naevi, ascites, splenomegaly and other signs. Patients with diagnosed hepatogenic diabetes mellitus should be treated under medical supervision.