A VARIETY of procedures have been described for the implantation of the ureters into the colon. The fact that there are a number of various technics would imply that no one method has received universal approbation or that the several technics all afford satisfactory results. The method described below has been employed in over a hundred individual implantations of ureters into colon and has given us satisfactory results. These implantations were carried out as part of the operation of partial or complete pelvic exenteration for advanced pelvic cancer.1 In the former, the rectal colon remains in situ and the bladder, vagina and uterus are removed. The ureters are implanted into the colon. In complete pelvic exenteration all the pelvic viscera are excised and the ureters are implanted into the lower sigmoid above an end colostomy to produce a "wet" colostomy. Preoperative preparation consists of thorough emptying of the bowels.