What type of urinary incontinence is vaginal estrogen most effective in treating?

• A. Stress urinary incontinence
• B. Urge urinary incontinence
• C. Mixed urinary incontinence
• D. Overflow urinary incontinence

Answer: (A)

Vaginal estrogen helps restore the health of urogenital tissues that become thin and less elastic after menopause. By improving the vaginal and urethral mucosa, blood flow, and connective tissue quality, estrogen enhances urethral closure when there’s a sudden increase in intra-abdominal pressure, such as coughing, sneezing, or lifting. This makes leakage less likely in situations driven by urethral sphincter weakness or pelvic floor support problems, which is the hallmark of stress urinary incontinence.

Urge incontinence is driven by detrusor overactivity, not tissue atrophy, so estrogen doesn’t address the underlying mechanism there. Mixed incontinence includes a detrusor component, so the benefit is limited. Overflow incontinence stems from obstruction or neurogenic issues rather than tissue atrophy, so estrogen isn’t the primary solution.