The gallbladder is part of the digestive tract that stores bile produced by the liver and bile duct. Some people develop gallstones, or hardened material formed from excess cholesterol or bile. The likelihood of developing gallstones has been attributed to a combination of diet and genetics. Most gallstones are small and get passed through the intestines but bigger stones that cause obstruction and damage the gallbladder may need to be removed. Symptoms of gallstones can include sharp pains in the right side of the abdomen, sharp pains in the center of the abdomen, or sharp pains in-between the shoulder blades.