What is biliary distension? It should refer to the discomfort in the right upper abdomen, especially in the gallbladder area, if there is cholecystitis or other gallbladder diseases, accompanied by biliary colic or stuffy discomfort in the right upper abdomen, and there is liver in the right upper abdomen in addition to the gallbladder. In terms of gallbladder distension, the descriptions of individuals are different, so when pain and discomfort in the right upper abdomen or other uncomfortable symptoms occur, you should go to the hospital for examination, abdominal ultrasound, observation of the liver and gallbladder, review of liver function, and observation of whether there are no other abnormalities. Biliary distension may be the discomfort of the right upper abdomen, there may be inflammation of the gallbladder, stone irritation or other lesions, such as whether there is liver disease, need to be investigated.