Symptoms such as change of urine color, dull skin color, yellowing of skin mucosa and sclera suggest poor liver function. 1. Change of urine color: usually when liver function is impaired, due to the metabolic disorders of urobilinogen and urobilirubin, patients will experience changes such as yellow urine and strong tea watery urine. 2. Dull skin color: patients with long-term chronic liver disease, due to melanin metabolism disorders, may appear facial skin color dull, dry and rough skin and other manifestations. 3. Yellowing of skin mucosa and sclera: when liver function is impaired, due to bilirubin metabolism disorder, yellowing of skin mucosa and sclera may occur. Some patients with cirrhosis may also have symptoms of liver palm and spider nevus. The presence of ascites and other conditions may also indicate that the patient’s liver function has deteriorated. If the above symptoms occur, the patient should consult a doctor in time and standardize the diagnosis and treatment under the guidance of a professional doctor.