A cystocele (SIS-to-seel) occurs when the supportive tissue between a woman's bladder and vaginal wall weakens and stretches, allowing the bladder to bulge into the vagina. A cystocele is also called a prolapsed bladder. Straining the muscles that support your pelvic organs may lead to a cystocele. Such straining occurs during vaginal childbirth or with chronic constipation, violent coughing or heavy lifting. Cystoceles also tend to cause problems after menopause, when estrogen levels decrease. For a mild or moderate cystocele, nonsurgical treatment is often effective. In more severe cases