There is no set time to drain ascites, which needs to be judged based on the amount of ascites the patient is draining and how fast he or she can tolerate the draining. Ascites is the excessive accumulation of free fluid in the abdominal cavity, which is a sign caused by disease. When the amount of fluid in the abdominal cavity exceeds 200 ml, it is called ascites. Cardiovascular disease, liver disease, peritoneal disease, renal disease, nutritional disorders, peritoneal metastasis of malignant tumors and so on can lead to the occurrence of ascites. The amount of ascites should be decided according to the condition, to avoid shock caused by too much ascites, the process of ascites need to pay attention to the patient’s heart rate, blood pressure and pulse changes, according to the monitoring situation to adjust the speed of ascites, so there is no fixed time to put ascites. If the patient has signs of ascites, it is recommended to improve the auxiliary examination to clarify the cause of ascites and then carry out targeted treatment.