Whenever considering a surgical procedure it is necessary to thoroughly discuss associated risks. With cholecystectomy there are both minor and major complications.
The vast majority of people who have their gallbladder removed notice no change in their overall make-up apart from the fact that their pain has gone. The most common are:
Minor wound infections
Occassional change in bowel habit
These are thankfully rare and include bleeding from the liver or blood supply to the gallbladder and can necessitate a further operation.
The most serious complication is inadverdant bile duct injury.
Bile duct injuries are reported in the literature to occur in up to 1% of cases. When identified they often require major reconstructive surgery.
The Yorkshire Gallstone Clinic has a published minimal minor complication rate.