What is Gallbladder?
The gallbladder is a small sac  that stores bile from the liver, and it’s found just beneath the liver. The gallbladder is a four-inch, pear-shaped organ. It’s positioned under the liver in the upper-right section of the abdomen.
The gallbladder releases a greenish fluid known as bile every time there is an intake of food substances to help the body digest fats and vitamins. This makes fat-soluble vitamins and nutrients to be more easily absorbed into the bloodstream. The bile flows down to the small intestine through tubes called ducts. Before a meal, the gallbladder may be full of bile and about the size of a small pear. After meals, the organ is empty and flat, like a deflated balloon. Typically the gallbladder doesn’t cause too many problems or much concern, but if something slows or blocks the flow of bile, several problems can follow.