Pelvic nonunion is very difficult to treat. According to the nonunion site, anterior or posterior surgical approach should be used selectively. And if the nonunion site is located in both anterior and posterior, both anterior and posterior surgical approach should be used. We report a case of testicular necrosis after ilioinguinal approach used as a anterior approach to pelvis to treat pelvic nonunion developed as a result of unstable pelvic ring injury.