What Is It?
A hernia occurs when part of an internal organ or body part protrudes through an opening into another area where it ordinarily should not be located. There are many different types of hernias, but the most common is when a portion of the intestine protrudes through a weak area in the muscular wall of the abdomen. This causes an abnormal bulge under the skin of the abdomen, usually near the groin or the navel.
Hernias occur in various locations. Some hernias are present at birth, while others develop during adulthood. Hernias may enlarge due to increased pressure inside the abdomen, such as during straining, persistent coughing, obesity, or pregnancy.