A hernia occurs when the contents of a body cavity bulge out of the area where they are normally contained. These contents, usually portions of intestine or abdominal fatty tissue, are enclosed in the thin membrane that naturally lines the inside of the cavity. Hernias by themselves may be asymptomatic (produce no symptoms) or cause slight to severe pain. Nearly all have a potential risk of having their blood supply cut off (becoming strangulated). When the content of the hernia bulges out, the opening it bulges out through can apply enough pressure that blood vessels in the hernia are constricted and therefore the blood supply is cut off leading to potential risk to the patient's life, demanding urgent surgical surgery. Best hernia surgeon in pune.