Blumberg's sign

Blumberg's sign or rebound tenderness is a clinical sign which is elicited during physical examination of a patient's abdomen by a healthcare provider and is indicative of peritonitis. It is named after the German surgeon Jacob Moritz Blumberg.

Definition

Blumberg's sign is a sign of peritoneal irritation. It is elicited by applying pressure to the abdomen and then suddenly releasing it. The pain felt upon the release of the pressure is referred to as rebound tenderness and is a positive Blumberg's sign.

Clinical significance

Blumberg's sign is used in the diagnosis of peritonitis, including appendicitis, diverticulitis, and other conditions that can cause abdominal pain. It is not specific for any particular disease and should be used in conjunction with other clinical findings and diagnostic tests.

Procedure

The healthcare provider applies pressure to the patient's abdomen with the hand. The pressure is then suddenly released. If the patient experiences pain upon the release of the pressure, this is considered a positive Blumberg's sign.

Limitations

While Blumberg's sign is a useful clinical tool, it is not without limitations. It is not specific for any particular disease and can be positive in any condition that causes peritoneal irritation. Furthermore, it can be negative in the early stages of appendicitis, before the peritoneum has become inflamed.

See also

• McBurney's point
• Rovsing's sign
• Psoas sign
• Obturator sign

References

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