Yellow lips should pay attention to the problem of hepatitis, which is a collective term for inflammation of the liver. It is usually caused by a variety of pathogenic factors, such as viruses, bacteria, parasites, chemical toxins, drugs, alcohol, autoimmune factors, etc., so that the liver cells are damaged, the function of the liver is damaged, causing a series of uncomfortable symptoms in the body, as well as abnormal liver function indicators. Due to the different causes that trigger hepatitis, although there are similar clinical manifestations, there are often significant differences in pathogenesis, serology, mechanism of injury, clinical course and prognosis, extrahepatic damage, diagnosis and treatment. It is important to note that most of the hepatitis we usually refer to in our life refers to viral hepatitis caused by hepatitis A, B, C and other hepatitis viruses. It is not common to have yellow lips, but if you have yellow lips along with yellow skin on your face and body, you should be careful if you have liver problems and should go to the hospital to check if you have hepatitis. 1, laboratory tests (1) liver function tests. (2) Serological examination (detection of virus-specific markers, which can help in the typing of viral hepatitis). (3) Other related tests (blood routine, kidney function, protein, fat and sugar metabolism, serum immunology, etc.). 2.Imaging examination including abdominal ultrasound, CT, magnetic resonance examination, etc. 3.Liver aspiration pathology examination is of great value for the diagnosis of each type of hepatitis. Through liver tissue electron microscopy, immunohistochemical detection and observation by KnodellHAI scoring system, correct data can be obtained on the etiology, etiology, inflammatory activity and degree of fibrosis of hepatitis, which is beneficial to clinical diagnosis and differential diagnosis.