Hernia

Protrusion of viscus or part of viscus through an opening in the wall of its containing cavity

Design weakness

Weakness due to structure entering or leaving abdominal cavity

Developmental failure (Processus vaginalis)

Genetic (weakness of collagen - Connective tissue defect)

Trauma

Weakness due to aging or pregnancy

Primary neurological disorder or muscle weakness

Intraabdominal pressure - May not be a primary cause for hernia (under debate)

1. Inguinal hernia

2. Femoral hernia

3. Ventral Hernia - Protruding through anterior abdominal wall fascia

   Epigastric hernia

   Umbilical or Paraumbilical hernia

   Traumatic

   Spigelian

   Lumbar

   Parastomal

   Incisional hernias