Enlarged gallbladder can be seen in some normal people, gallbladder stones cholecystitis, biliary tract tumors, etc. If biliary tract tumors, it is serious. 1. Cholecystitis, gallbladder stones: Acute cholecystitis, gallbladder stones can cause gallbladder enlargement, if the stones are located in the neck of the gallbladder, it can lead to obstruction of bile discharge leading to progressive enlargement of the gallbladder, which can cause abdominal pain. If the obstruction is not removed in time, it can lead to increased pressure in the bile duct or progressive jaundice. 2. Biliary tract tumor: if there is cancer in the gallbladder, or occupying tumor in the biliary tract or head of pancreas, it can lead to poor bile discharge, which can lead to edema of the gallbladder and enlargement of the gallbladder. 3. Some normal people: some normal people have larger than normal gallbladder, if there is no obvious symptom and the gallbladder wall and gallbladder contraction are normal, then no special treatment is needed. The enlargement of the gallbladder can be caused by many reasons, once the gallbladder is enlarged, you should consult a doctor immediately and receive treatment under the guidance of the doctor.