Nocturnal enuresis is abnormal after:
**Core Concept**
Nocturnal enuresis, also known as bedwetting, is the involuntary urination during sleep. It is a common problem in children but can persist into adulthood. The underlying concept being tested here is the age at which children typically outgrow nocturnal enuresis.
**Why the Correct Answer is Right**
Children typically outgrow nocturnal enuresis by the age of 5-7 years. This is because the immature bladder and urethral sphincter function, which are responsible for bladder control, mature and develop enough to prevent nocturnal enuresis. As children grow, their bladder capacity increases, and their ability to stay dry during the night improves.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect as nocturnal enuresis can persist into adulthood, especially in individuals with underlying medical conditions such as diabetes, neurological disorders, or bladder dysfunction.
**Option B:** This option is incorrect as nocturnal enuresis is not typically a concern in infants, as they have not yet developed bladder control and are still learning to use the toilet.
**Option C:** This option is incorrect as nocturnal enuresis can occur at any age, and the age of 10 is not a specific cutoff for when it becomes abnormal.
**Clinical Pearl / High-Yield Fact**
A key aspect to remember is that nocturnal enuresis can be a symptom of an underlying medical condition, such as diabetes or a neurological disorder. Therefore, it is essential to investigate the cause of nocturnal enuresis in adults, especially if it persists or is accompanied by other symptoms.
**Correct Answer: A. 5-7 years**