It is an extremely common pathology: 150 000 people are operated on an inguinal hernia each year in France.
A hernia, as a rule, is an orifice through which an organ, or part of an organ, emerges from the cavity that contains it. Inguinal hernia (in the groin) is a piece of peritoneum and intestine that exits through the inguinal canal.
When one works his abdominals, the belly is very muscular. However, at the level of the groin, between the muscles, is a canal: the inguinal canal through which arteries, veins (which feed the testicles), a ligament and the vas deferens (through which the spermatozoa go from the testicle by the yard). Normally, the inguinal canal is narrow. In the event of a problem, during a too violent effort or a cough too strong, the canal opens and lets pass some sort of bag - a hernia - containing peritoneum, sometimes a small portion of small intestine or large intestine, and sometimes even bladder.