Hernia

A hernia occurs when part of an internal organ bulges through a weak area of muscle. Most hernias occur in the abdomen. There are several types of hernias, including

* Inguinal, the most common type, is in the groin
* Umbilical, around the belly button
* Incisional, through a scar
* Hiatal, a small opening in the diaphragm that allows the upper part of the stomach to move up into the chest.
* Congenital diaphragmatic, a birth defect that needs surgery

Hernias are common. They can affect men, women and children. A combination of muscle weakness and straining, such as with heavy lifting, might contribute. Some people are born with weak abdominal muscles and may be more likely to get a hernia.