Cholecystitis is an inflammation of the gallbladder usually caused by a gallstone getting stuck in the opening of the gallbladder. Accordingly, acute cholecystitis can lead to fever, pain, and nausea. The treatment in these cases is cholecystectomy. Conversely, if not treated in time, serious complications of acute cholecystitis can be acquired such as gallbladder perforation, necrosis, fibrosis, and gallbladder retraction or secondary bacterial infection.