is the medical term used to describe the involuntary discharge of urine beyond the age when a child is old enough to be able to control urination (usually considered to be six years of age for nighttime control), or more commonly, bedwetting. There are several types of : diurnal is wetting that occurs during waking hours, primary nocturnal is a lack of the achievement of total bladder control during sleep, and secondary nocturnal enuresis is loss of bladder control that happens after a child (or adult) has been dry a night for ....