Abdominal wall hernias, also known as stomach hernias, can result from an abdominal organ pushing its way through a tear in the muscles of the abdomen. It is a fairly common condition, and as many as 10 percent of people can develop a hernia in their lifetime and more than 500,000 hernia operations occur yearly in the U.S. It is actually the most common procedure in the U.S. and can be easily performed using laparoscopy.
http://www.belmarrahealth.com/abdominal-wall-hernia-symptoms-types-causes-and-prevention/
Abdominal wall hernia symptoms, types, causes and prevention