A hernia is a bulge caused by a weakness in muscles which form the front wall or abdomen. Muscles can be weak from birth or become weak as part of the ageing process. There are natural gaps in the muscles to accomodate blood vessels and other tissue. With a weakening of these muscles, the gaps may become big enough to allow the inner lining of the abdomen to push through. If this happens, a hernia is formed.
Hernias
They can also be caused by pressure on the muscles, for example through heavy lifting, sports activity or coughing. You may develop a hernia through being overweight, or if scars from previous surgery are overstretched. Hernias often occur in the groin area, sometimes on both sides.
Sites where hernias commonly occur:
1. umbilical hernia
2. groin or inguinal hernia
3. femoral hernia