A rectocele occurs when the end of the large intestine pushes against and moves the back wall of the vagina. Rectocele develops if the lower pelvic muscles become damaged by labor, childbirth, a previous pelvic surgery, or when the muscles are weakened by aging.
A rectocele may become large or more obvious when you strain or bear down, for example during a bowel movement. Because rectocele is a defect of the pelvic supporting tissue and not the bowel wall, they are treated most successfully with surgery that repairs the vaginal wall. The surgery pulls together the stretched or torn tissue in the area of prolapse. Surgery will strengthen the wall of the vagina to prevent reoccurring prolapse.