Involuntary discharge of urine.

• A. Nocturnal Enuresis
• B. Enuresis
• C. Nocturia
• D. Dysuria

Answer: (B)

The main concept here is the term used for involuntary urination. Enuresis is the broad term for involuntary discharge of urine, and it isn’t restricted to a specific time or situation. That makes it the best fit for a description of urine being discharged involuntarily without qualifiers.

To see how the other terms differ: nocturnal enuresis refers specifically to bedwetting during sleep, so it’s a subset of enuresis rather than the general concept. Nocturia means waking at night to urinate, which describes a nocturnal voiding pattern rather than an involuntary discharge itself. Dysuria is painful or difficult urination, a symptom rather than the act of involuntary urine discharge.

So, for involuntary urine discharge in general, enuresis is the most accurate term.