What causes anterior vaginal wall prolapse?

Childbirth is a natural physiological process experienced by every woman. For most women, however, it leaves behind a series of postpartum physical changes and complications. Anterior vaginal wall prolapse is one type of pelvic organ prolapse, which also includes uterine prolapse, posterior vaginal wall prolapse, and others. This condition inevitably affects patients’ quality of life; if inadequately managed, it may even trigger additional health complications. So, what exactly is anterior vaginal wall prolapse? Below, we provide a detailed explanation.

What Is Anterior Vaginal Wall Prolapse?

Diagnosis of anterior vaginal wall prolapse requires physical examination. It is, in fact, a gynecological condition commonly associated with bladder prolapse (cystocele), leading to urinary obstruction or difficulty voiding. In severe cases, patients may experience complete urinary retention—a potentially life-threatening complication. Anterior vaginal wall prolapse frequently coexists with uterine prolapse and may cause urinary hesitancy or abnormal voiding patterns. Surgical intervention is typically required. The conventional anterior vaginal repair involves excising a portion of the anterior vaginal mucosa, reinforcing the underlying supportive tissue, and then suturing the area. While this procedure often achieves successful correction, recurrence remains possible.

Knowledge Extension: Symptoms of Posterior Vaginal Wall Prolapse

1. Symptoms

When the posterior vaginal wall mucosa is visible at the vaginal introitus, patients are often asymptomatic. However, when the posterior vaginal wall protrudes markedly beyond the vaginal opening, patients commonly report a foreign-body sensation or friction discomfort in the vulvar region. Some experience pelvic pressure or low-back pain. In advanced cases, defecation becomes difficult, requiring manual pressure on the posterior vaginal wall to facilitate bowel movement.

2. Physical Signs

A spherical bulge of the posterior vaginal wall mucosa may be observed. The vaginal canal is typically lax and often accompanied by old perineal lacerations. On digital rectal examination, the examiner’s finger may palpate the rectum bulging forward into the vagina—producing a “blind pouch” sensation—suggesting isolated posterior vaginal wall mucosal prolapse. When two distinct spherical bulges are visible on the posterior vaginal wall, the bulge located in the mid-vaginal segment represents rectocele, whereas the one situated in the posterior vaginal fornix indicates enterocele. Bimanual or rectal examination may reveal loops of small intestine within the hernia sac.

The above provides an overview of anterior vaginal wall prolapse. We hope this information proves helpful.