The gallbladder is located in the right upper abdomen of the body, in the fossa of the gallbladder at the lower edge of the rib cage. When there is an onset of cholecystitis in the body, there are two types of cholecystitis: acute and chronic. Some people even have gallstones in combination with the clinical condition. If an acute attack of cholecystitis occurs, the pain is very severe, often in the form of colic. When gallbladder pain is present, it can generally be manifested as pain in the right upper abdomen, and at the same time will be radiating, specifically in the right shoulder and the right subscapular angle, there will be obvious radiating pain. Therefore, if the pain in the right upper abdomen occurs after eating a high-fat diet and radiates to the right shoulder and scapula, we must consider the possible onset of cholecystitis.