What causes groin hernias?

No specific cause: Groin or inguinal hernias are quite common in men, and may be somewhat hereditary. It is a weakness in the fibers that may be weak since birth. Can sometimes be associated with heavier lifting or repeated straining.

Unknown: The exact cause for any individual is unknown, but several factors are know to cause hernias such as a genetic collagen disorder, lifting heavy objects, coughing, or any activity that involves sudden and repeated increases in pressure inside the abdominal cavity.