In the clinical work of the hospital, there are often patients with cirrhotic ascites who present with abdominal infection before they come to the clinic, the consequences of which are very serious and can cause sepsis and liver failure in serious cases, endangering life. The clinical manifestations of peritonitis are as follows: fever, fever in the afternoon is obvious; unexplained abdominal pain and distension, mostly located around the umbilicus or lower abdomen; non-infectious diarrhea (i.e., stool tests do not show infection); a large increase in ascites within a short period of time; a sudden decrease in the diuretic effect of diuretics; pressure pain and rebound pain in the abdomen on examination; the diagnosis is best with The diagnosis is best confirmed by the results of ascites laboratory tests and ascites culture to facilitate the choice of antibiotics. Patients with cirrhotic ascites should seek medical attention promptly if they have the above conditions and suspect peritonitis. Bai Wenlin, Department of Hepatology, PLA 302 Hospital