Biliary tract disease is a common occurrence in developed countries among which cholecystitis and biliary colic are most common. Both biliary colic and acute cholecystitis are most frequent complications of gall bladder stone disease or cholelithiasis. Biliary colic is defined as acute biliary pain which occurs when the gallbladder contracts against any stone obstructing the cystic duct. Patients with biliary colic usually presents with sharp, intermittent, right upper abdominal pain, nausea and vomiting. Besides, acute cholecystitis is an acute inflammation of the gall bladder due to its cystic obstruction. This obstruction leads to gall bladder distention, serosal edema, mucosal sloughing, venous and lymphatic congestion and subsequently ischemia. Symptoms of acute cholecystitis resembles to that of the biliary colic since patients with acute cholecystitis may have a history of attacks of biliary colic.2 Acute cholecystitis account for 3-10% of all patients with abdominal pain and 20% of patients admitted to hospital for biliary tract disease. It is 3 times more common in women than in men up to the age of 50 years and is 1.5 times more common in them thereafter. The complications of acute cholecystitis include perforation of the gall bladder, pericholecystic abscess, and fistula caused by gall bladder wall ischemia and infection. The overall mortality from an untreated complication is about 20%.