There are many reasons for large amount of ascites, the most common of which include the following aspects: first, the most common cause may be cirrhosis, patients with cirrhosis will have hypoproteinemia, which will cause ascites, the patient may be accompanied by abdominal distension and lower limb edema, and it should be treated by replenishing albumin and diuresis; second, when there is acute inflammation, which may cause ascites, the most common in acute Secondly, when there is acute inflammation, the most common cases are acute appendicitis and peritonitis, etc., the peritoneum will have inflammatory exudation and cause ascites, which should be treated by anti-infection therapy, so as to make the ascites gradually absorbed; thirdly, if there are malignant tumors, for example, liver, pancreatic and gastric cancers metastasized to the peritoneum, there will be ascites, and the ascites will be bloody, and in fact, the disease presents a progressive state with a poorer prognosis, and the patient’s survival will be shortened, so the patient should take active symptomatic comprehensive treatment.