What causes nocturnal enuresis?
The exact cause of your child’s nocturnal enuresis may not be known. Ask your caregiver for more information about the following causes of nocturnal enuresis: • Bladder size and function: Your child’s bladder is an organ that stores urine. When your child’s body makes more urine than his bladder can hold, he may wet the bed. This can occur if your child’s bladder is small, or if he sleeps for many hours at a time. Sleeping for many hours means the bladder may fill with more urine than it can hold. Normally, your child’s bladder muscles tighten when the bladder is full. Sometimes the bladder muscles tighten before the bladder is full, causing your child to urinate while he sleeps. • Nocturnal polyuria: Nocturnal polyuria means your child’s body makes large amounts of urine while he sleeps. Normally, the hormone (body chemical) vasopressin decreases the amount of urine a person makes during the night. Without enough vasopressin, your child’s body may make too much urine, causing him to w
