The total bilirubin of 34.7 is higher than normal, but it is not very serious. Whether treatment is needed can only be determined by combining the results of other laboratory tests. Total bilirubin is the sum of direct bilirubin and indirect bilirubin, which can accurately reflect the degree of jaundice and is important for clinical diagnosis of hidden jaundice; the normal value of total bilirubin ranges from 3.4 to 17.1, and it is mainly used to diagnose whether there is liver disease or bile duct abnormality. Generally speaking, the total bilirubin of 34.7 is slightly higher than the normal value, but it is not considered serious. If there is no abnormality in the results of liver function tests and liver and gallbladder ultrasound, there is no need to worry too much. Elevated total bilirubin can be affected by lack of sleep before the test if it is not accompanied by other abnormal results. It is recommended that patients with elevated total bilirubin should consult a doctor in a timely manner so as to avoid delaying their condition, and a professional doctor should decide whether targeted treatment is needed according to their condition.