SummaryThirty cases of abdominal tuberculosis were diagnosed over an 18-year period, 26 being in immigrants; the mean age at presentation was 33 years. There were 25 cases of tuberculous peritonitis, two of tuberculous mesenteric lymphadenitis, and one each of gastric tuberculosis, colonic tuberculosis and tuberculous ischiorectal abscess. The presenting symptoms were of vague ill-health and not diagnostic, and the most common findings were ofpyrexia, abdominal tenderness and ascites. The most common haematological abnormalities were raised ESR (22