What are the common causes of gallstones? Acute cholecystitis is a very common disease in clinical work and can be divided into acute calculous cholecystitis and non-calculous cholecystitis according to the condition. For the formation of gallstones, the following factors are the main causes: 1, the gallbladder contraction function is reduced. The human body secretes about 800-1000 ml of bile every day, but only 50 ml of bile is stored in the gallbladder, so the bile has to be concentrated, and the bile will be very viscous. 2.Biliary roundworm infection. Biliary roundworm can’t be discharged in the gallbladder, and it will attach with cholesterol crystals to form the core part of gallstones. As more cholesterol crystals are precipitated, gallstones will be formed slowly. 3.Biliary tract infection. E. coli bacteria in the intestine enter the gallbladder along the bile duct, causing secondary infection, which can cause edema and thickening of the gallbladder wall, resulting in narrowing of the outlet of the gallbladder duct, which is not conducive to the excretion of viscous bile and induces the formation of gallstones. 4, unhealthy diet. Such as not eating breakfast, because after a night time, the liver and capillary bile secretion bile stored in the gallbladder, when the body eats breakfast gallbladder contraction, excretion of bile into the intestine to help us digest food, if you do not eat breakfast, the gallbladder is not easy to excrete out, a long time prone to gallstones.