A hernia occurs when a section of intestine protrudes through a
weakness in the abdominal wall. A soft bulge is seen underneath
the skin where the hernia has occurred. An inguinal hernia
occurs in the groin area, when a section of intestine pushes
through a weak spot in the inguinal canal--a triangle-shaped
opening between layers of abdominal muscle near the groin. As a
male fetus grows and matures during pregnancy, the testicles
develop in the abdomen and then move down into the scrotum
through the area called the inguinal canal. Shortly after the
male is born, the inguinal canal closes, preventing the
testicles from moving back into the abdomen. If this area does
not close off completely, a loop of intestine can move into the
inguinal canal through the weakened area of the lower abdominal
wall, causing a hernia. Although females do not have testicles,
they do have an inguinal canal and can develop hernias in this
area, as well. Obesity, pregnancy, heavy lifting, and straining
to pass stool can all be causes