Hernia by definition is protrusion of tissue from inside the abdominal cavity through a defect in the abdominal wall. Hernias are classified based on the location and size.
In the abdomen, the most common areas are:
1) Groin (Inguinal and Femoral)
3) Incisional (site of previous surgery)
5) Hiatal (junction of esophagus and stomach)
6) Lumbar (between back muscles)
The risk factors for inguinal hernia (IH) include: family history, previous contra-lateral hernia, male gender, age, abnormal collagen metabolism, prostatectomy, and low body mass index. Peri-operative risk factors for recurrence include poor surgical techniques, low surgical volumes, surgical inexperience and local anesthesia