There is a specific type of adenomyosis called segmental adenomyosis, which occurs in the body of the gallbladder or in the jugular abdomen as circumferential stenosis adenomyosis. This adenomyosis is often due to physical and pathological changes in the wall of the gallbladder caused by repeated inflammatory friction of gallbladder stones, and has a certain clinical risk of carcinogenesis, which usually accounts for about 3%-6% of adenomyosis. Most adenomyosis is caused by repeated irritation of stones inside the sinus of Rho-Arthritis, causing focal adenomyosis often located at the base of the gallbladder. The chance of cancer in this diffuse type of adenomyosis is not very high, less than 1/10,000, so although the chance of cancer in these two types of adenomyosis is not high, once cancer occurs, it may be a 100% possibility in a particular individual. Adenomyosis is actually a thickening of a certain part of the gallbladder wall, which is often clinically described by ultrasound, CT, or MRI as an indication of the presence of adenomyosis in a certain area, but in fact, most adenomyosis does not have a high chance of cancer. Therefore, sometimes in clinical cases of diffuse adenomyosis, especially if the adenomyosis is severe, patients are advised to have their gallbladder removed. For segmental adenomyosis, cholecystectomy is definitely required. For focal adenomyosis of the gallbladder, in the case of good gallbladder function and focal location, partial cholecystectomy, such as biliary preservation surgery, can be done.