We present a never before reported delayed complication of progressive perineal urethroplasty with inferior pubectomy in a young male, where retained bone chip spontaneously erodes through anal canal. Our case cautions urologists doing inferior pubectomy for pelvic fracture urethral distraction defect to make sure that no loose bony fragment is left in the operative field. We also emphasize to make sure to nibble the sharp bony margins of the cut pubic bone after inferior pubectomy so that it will not impinge onto the anterior wall of rectum eliminating the risk of delayed perforation of rectum or anal canal.