The gallbladder is not necessary for life and in rare instances causes life-threatening problems if not removed. Removal of the gallbladder is not known to have any long-term negative side effects, although some patients do experience loose bowel movements at times, according to the University of Maryland Medical Center.
While not all gallbladder surgery is vital, some conditions such as acute cholecystitis, or inflammation of the gallbladder, may cause abscesses or gangrene if left untreated, causing septicemia in 20 percent of cases, according to the University of Maryland Medical Center. This is deadly if left untreated, causing the body to go into septic shock.
Typical gallbladder pain occurs in the upper right side of the abdomen after eating, although acute inflammation causes symptoms such as severe pain and fever, accompanied by nausea and vomiting. More than 600,000 surgeries to remove the gallbladder are done each year in the United States, according to the New York Times.