The recent drowsiness in the advanced stage of liver cirrhosis is suspected to be complicated by hepatic encephalopathy, which may also be caused by malnutrition, and requires timely medical treatment to avoid serious consequences. 1. Malnutrition related: advanced cirrhosis of the liver because the liver produces less protein, there is a decrease in blood albumin, malnutrition, may cause fatigue, loss of appetite, nausea and vomiting, resulting in drowsiness. At this time, it is necessary to supplement the nutrition, if necessary, need to consult a doctor. 2. Hepatic encephalopathy: the detoxification function of the liver is seriously impaired in the advanced stage of cirrhosis, resulting in a large number of toxins entering the blood circulation, through the blood-brain barrier, resulting in lethargy and drowsiness. At this time, drowsiness signifies that the more serious stage of hepatic encephalopathy may have been reached, and the laboratory examination may find that the blood ammonia is elevated and the jaundice is serious, and so on. Hepatic encephalopathy is one of the main causes of death in liver cirrhosis, early detection, early treatment, and active improvement of symptoms are very important for prognosis, and it is recommended to standardize the diagnosis and treatment in hospital in time.