What are the four major types of urinary incontinence?

• A. Stress, urge, overflow, and functional.
• B. Nerve, muscle, gland, vascular.
• C. Acute, chronic, intermittent, total.
• D. Primary, secondary, tertiary, quaternary.

Answer: (D)

The four major types of urinary incontinence are stress, urge, overflow, and functional.

Stress incontinence happens when urine leaks with activities that increase abdominal pressure, like coughing, sneezing, lifting, or exercise, due to weakened pelvic floor support or a less competent urethral sphincter. Urge incontinence is marked by a sudden, intense urge to void followed by leakage, driven by overactivity of the bladder muscle (detrusor overactivity). Overflow incontinence occurs when the bladder doesn’t empty properly, leading to leakage or dribbling; this can result from weak detrusor contraction or obstruction that traps urine, and is often associated with a high postvoid residual. Functional incontinence is leakage that results from factors outside the bladder’s function—such as limited mobility, cognitive impairment, or difficulty accessing a bathroom—so the bladder itself is not the primary problem.

The other options don’t categorize incontinence by these mechanism-based patterns; they describe unrelated concepts like duration or levels of care, rather than the common clinical types you assess and manage in urinary incontinence.