The main reason for abdominal distension caused by liver cancer is that cancer damages liver cells and causes damage to liver function, thus causing a drastic decrease in albumin synthesis in liver, a significant decrease in albumin concentration in blood and a decrease in colloid osmotic pressure in blood, resulting in a large amount of water leakage from blood to abdominal cavity, forming ascites and causing abdominal distension. The most direct and fast way is to perform laparotomy and place a silicone tube to release the water in the abdominal cavity through the tube to relieve abdominal distension. Second, intravenous supplementation of albumin and diuretic treatment. The cause of the disease can also be addressed by the intravenous input of albumin to restore blood albumin concentration and plasma colloid osmotic pressure, so that the water in the abdominal cavity is reabsorbed into the blood, and diuretic therapy is given to excrete excess water out of the body through massive urination. The most fundamental approach is still to control the development of liver tumor, which is more difficult and slow.