Gall stone are stone like objects that develop in the gallbladder of bile ducts. Gallstone can range dramatically in size from tiny grains to sands to gall bladder sized objects, interestingly small stone can often cause the most trouble.
Cholecystitis
Cholecystitis is a redness and swelling of the gallbladder. It happens when a digestive juice called bile gets trapped in your gallbladder. The gallbladder is a small organ under your liver. It stores bile which is made in liver.