Gallstones are formed in gall bladder being initiated by chronic disturbances in bile composition. The condition in which the gallbladder gets swollen due to presence of gallstone in it is called cholecystitis...

Gallstones are solid deposits of digestive fluid which forms stone like structures in gallbladder. Gallstone forms in different sizes; some people may develop one gall stone but other may have several small gallstones in their gall bladders...