Bed wetting or enuresis means that a child passes urine without his knowledge when he is sleeping. This can occur at night or any time of the day while asleep. A child is considered to have bed wetting if he/she keeps on passing urine in bed at least 2 times a month after the age of 5 years.
About 85% of children develop complete bladder control by 5 years of age. As the children grow older more and more attain dryness and the percentage of them wetting the bed reduces to 5% at 10 years and 1% at 15 years. More boys are affected than girls at least till the age of 12 years.
To help in the diagnoses and treatment, bedwetting is classified into 2 types (A) Primary and (B) Secondary. In primary nocturnal enuresis, the child has never been dry at night, while in secondary type, the child has been dry at night for at least 6 months at a stretch, and has started to wet the bed again.
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