For patients with chronic viral hepatitis B, abdominal distension, mostly consider the possibility of peritoneal cavity fluid, may also be combined with a decrease in the frequency and volume of urine, it is recommended that the patient should further check the ultrasound of the upper abdomen, as well as blood tests to check the liver function and hepatitis B three systems, hepatitis B DNA and other relevant tests. If the patient suggests that there is an uncompensated stage of cirrhosis, there will be fluid in the peritoneal cavity of the patient, spleen enlargement, hypersplenism, as well as fundic esophageal varices in some patients. In addition, for some patients with liver disease, there may be the possibility of hypoproteinemia, which is caused by liver function deterioration, resulting in reduced hepatic synthesis of albumin, which will form hypoproteinemia, and cause swelling and peritoneal cavity effusion of the patient’s possible, at this time the patient should be actively considered for supportive treatment by intravenous infusion of plasma and albumin, and when the albumin is elevated, the patient can be considered in moderation for oral diuretic drugs, such as hydrochlorothiazide, diuretic drugs. Oral diuretic drugs such as hydrochlorothiazide and spironolactone can be considered for diuretic treatment. After the patient’s ascites is eliminated, the patient’s symptoms of abdominal distension will also slowly improve or disappear.