AbstractReports of microsurgical testicular autotransplantation as a method of dealing with the high undescended testis have prompted this review. Results with various methods are compared. The increasing success being reported with division of the internal spermatic vessels (when certain principles as enumerated herein are followed) leads to the conclusion that the more technically complex method of microsurgical testicular autotransplantation will not come into general use. The opportunities for testicular homotransplantation are rare, and no definitive conclusions can be made concerning this rarely reported procedure.