Patients with poor liver function may have various clinical signs caused by the decline of skin, vision, digestion, blood and other functions. 1. Skin: patients with poor liver function may have a hepatic face, which is characterized by a dark, yellowish and dull complexion, and may be combined with itchy skin, liver palms, spider nevi and other manifestations. 2. Vision: Due to the decline of liver function, the amount of vitamin A synthesized by liver cells decreases, which leads to the reduction of the synthesis of retinal pigment by optic rod cells, causing night blindness. 3. Digestion: some patients may have abdominal discomfort, fatigue, poor appetite, diarrhea, indigestion, etc. due to decreased liver function and decreased bile synthesized by liver cells. 4. Blood: Due to the decrease in liver function, which leads to the decrease in the synthesis of coagulation factors and the decrease in platelet count due to hypersplenism, patients are very prone to bleeding gums when brushing teeth. 5. Other: some male patients may have breast development, thinning body hair and other manifestations. Clinical signs of poor liver function lack specificity, it is recommended that patients who usually like to drink alcohol or have liver disease should consult a doctor in a timely manner and improve the examination under the guidance of the doctor.