[Pysical examination--rebound tenderness].

Rebound tenderness is generally practiced in the diagnosis of acute abdominal pain. It is a test that inflicts much discomfort to the patient. Literature data derived from reports assessing the reliability of the diagnosis of acute appendicitis indicate a sensitivity of 0.78-0.91 (pooled: 0.91) and a specificity of 0.48-0.60 (pooled: 0.60) of rebound tenderness. It would appear that rebound tenderness is a test of little specificity (leading to many false positive results) and that it has very little additional value, particularly in the presence of local tenderness and/or rigidity in patients with acute abdominal pain.