Nocturnal enuresis is the medical term for bed-wetting.
Most kids who wet the bed have primary enuresis. Secondary nocturnal enuresis means that the child was completely dry at night for at least 6 months and then started wetting again. Bed-wetting is a medical problem. If it is not diagnosed and treated, it can cause real problems like loss of self-esteem for the child and other psychological distress for the child and the family. It s very common.