What causes rebound tenderness?
Similarly one may ask, why does rebound tenderness occur?
Rebound tenderness occurs when the tissue that lines the abdominal cavity (the peritoneum) is irritated, inflamed, or infected. This is called peritonitis.
Then, what is rebound tenderness?
Blumberg's sign (also referred to as rebound tenderness, Shyotkin-Blumberg sign) is a clinical sign that is elicited during physical examination of a patient's abdomen by a doctor or other health care provider. It refers to pain upon removal of pressure rather than application of pressure to the abdomen.
Although rebound tenderness is a widely used examination, it is uncomfortable and may be inaccurate. To perform the pinch-an-inch test, a fold of abdominal skin over McBurney's point is grasped and elevated away from the peritoneum. The skin is allowed to recoil back briskly against the peritoneum.