[Preventive and simultaneous appendectomy]

75 patients underwent simultaneous appendectomy, when gall bladder, stomach or large bowel were chiefly operated. Complications of incision marks were observed in six cases, but only one of them being possibly due to appendectomy. Six common complications could not be explained by additional operation. Postoperative treatment was not extended. 5 patients died due to the severity of their main disease. Prophylactic or simultaneous appendectomy were conditionally recommended and subjected to a decision by a fully experienced surgeon.