Abdominal wall tenderness: a useful sign in chronic abdominal pain.

The outcome in 72 patients with obscure abdominal pain and a positive Carnett's (abdominal wall tenderness) test, seen in one firm's surgical outpatient clinic between 1975 and 1983, was sought by a combination of hospital note retrieval and general practitioner questionnaire. Full follow-up data to date or death were available for 58 (81 per cent) patients and partial follow-up for 14 patients. The study showed that the patients generated a good deal of investigation and a number of surgical procedures but that seldom were their symptoms attributable to serious pathology. Familiarity with the test, taken in the context of a proper history and examination, has been found helpful in assessing such patients and saves the inconvenience, expense and occasional hazard of investigation, and even surgery.