A strain in the lower abdominal muscles is sometimes referred to as ... an inguinal hernia will often cause a bulge in the area around the groin. However, a pulled ab muscle or sports hernia ...

The new strain's emergence, found spreading throughout the country and on cruise ships, offers a possible explanation for the past month's steep wave of infections from the stomach bug.

A hernia occurs when the stomach, intestine, or other organ in your abdomen pokes through a tear or weak spot in the muscle.