What causes betwetting?
Bed wetting is usually simply due to a delay in the maturation of the part of the nervous system that controls bladder function. It sometimes may be due to either psychological problems or medical disorders, such as a urinary tract infection, urinary tract abnormalities, or diabetes (diabetes mellitus or diabetes insipidus).
Children over age 5 or 6 are said to have primary nocturnal enuresis if they are unable to maintain nighttime bladder control for more than 6 months in a row. Bed-wetting that develops after a child has been dry for a period of time (secondary nocturnal enuresis) may be caused by a medical condition, such as diabetes, or emotional stress. If a child's bed-wetting is caused by a medical condition, treatment for the condition may be needed.
Bedwetting is not a behavioral problem and it is not related to how a child sleeps. Many parents have the perception that their children are very 'deep' sleepers and this is what has caused the bedwetting. However, studies have shown no difference in the sleep patterns of enuretic and normal children. There is more evidence suggesting that enuresis is the result of a developmental delay in the normal process of achieving nighttime control. The normal process involves the release of a hormone that prompts the kidneys to slow down production of urine during nighttime sleep. This hormone, called vasopressin, is not secreted in many children who have a problem at night usually.
There is no single cause for this condition but researchers have discovered some genetic links, suggesting heredity may play a role. A family history of nocturnal enuresis is found in most children with the condition. Heredity as a causative factor of primary nocturnal enuresis has been confirmed by the identification of a gene marker associated with the disorder.