There are two main types of cholecystitis, one is non-lithiatic cholecystitis and the other is lithiatic cholecystitis. The causes of the onset of non-calculous cholecystitis are more complex and mainly involve infection and ischemia, while the onset of calculous cholecystitis is more singular and is mainly caused by bacterial infection due to obstruction of bile drainage. Calculous cholecystitis is the most common, accounting for about 95% of all cases. Calculous cholecystitis occurs when the main opening of the gallbladder is blocked by gallstones. Stony cholecystitis occurs when an obstruction in the gallbladder duct causes bile to accumulate in the gallbladder, increasing its internal pressure and causing it to become inflamed. The occurrence of acute nonstone cholecystitis involves the release of inflammatory mediators due to ischemia, infection, or bile stasis leading to the development of cholecystitis. Sometimes a relatively large number of bacterial infections can be found, especially anaerobic and gram-negative bacterial infections. Inflammation of the gallbladder can also occur as a result of insufficient blood supply after the gallbladder has become stuck or embolized due to some reason in the blood vessels that supply it. It often occurs after surgery, trauma, burns, systemic infections and in some patients with peritonitis. After the occurrence of cholecystitis, there are usually more pronounced symptoms of abdominal pain and gastrointestinal discomfort. Treatment still needs to be actively given.