Traumatic anorectal injuries are rare in pediatric surgical practice. Only several similar cases are described in the world literature. This causes no generally accepted algorithms and tactics for these patients. We demonstrate successful surgical treatment of combined trauma of the rectum and bladder in a child. A 13-year-old boy was hospitalized after the child sat on the leg of an overturned chair. No evidence of penetrating abdominal injury was revealed. The boy underwent sigmoidoscopy under general anesthesia. We found a lacerated wound of anterior wall of the rectum measuring 1/3 of its diameter with damage to posterior wall of the bladder. Diagnostic laparoscopy revealed intact abdominal cavity. Wall defects were sutured (bladder wound was sutured during traditional cystotomy), and we formed protective separate double-barreled sigmostomy. In 3 months after discharge, the child was hospitalized for cystography and fistulography with subsequent closure of stoma. In long-term postoperative period (6 months), the quality of life is satisfactory. There is no pain and disturbances of urination.