Meager information exists regarding the morbidity of cancer surgery in obese patients, and it is generally assumed that surgery in the obese patient is attended with increased complications over those found in nonobese patients. A retrospective evaluation was undertaken at the Louisiana State University Medical Center to ascertain the morbidity of cancer surgery among 97 patients. In comparing the obese with the nonobese group of patients, the former was more often found to have complications of postoperative wound disorders that frequently required secondary operations, and a greater incidence of diabetes. The risk of postoperative complications among obese patients undergoing cancer surgery did not otherwise appear to be greater than that of nonobese patients.