The involuntary loss of urine associated with bladder distension describes which type?

• A. Urge incontinence
• B. Functional incontinence
• C. Overflow incontinence
• D. Mixed incontinence

Answer: (C)

Overflow incontinence is tested here. It occurs when the bladder becomes overdistended because it can’t empty properly—either from weak detrusor contraction or an outlet obstruction. As filling continues and pressure rises, urine leaks despite the lack of a strong, complete void, often with a high post-void residual and a feeling of bladder fullness. This contrasts with urge incontinence, which is due to sudden detrusor overactivity and a strong urge to void, functional incontinence from barriers to toilet access, and mixed incontinence that involves multiple mechanisms. So the involuntary loss of urine associated with bladder distension best fits overflow incontinence.