Which term describes the inability to control urination at night?

The term that describes the inability to control urination at night is enuresis. This condition is commonly referred to as bedwetting, particularly in children, but it can also affect adults. Enuresis specifically denotes involuntary urination during sleep, distinguishing it from daytime urinary issues.

The other terms present different concepts related to urination. Diuresis refers to increased urine production, often due to the intake of fluids or certain medications. Incontinence is a broader term that encompasses the inability to control urination at any time, not limited to just nighttime. Polyuria refers to the production of an abnormally large volume of urine, which may be a symptom of conditions like diabetes but does not specifically address the control aspect at night. Hence, enuresis is the most accurate term for nighttime urinary incontinence.