Enuresis in children refers to the phenomenon that children over 5 years old cannot control their urination, often wet their beds at night, and sometimes wet their pants during the day. Urinating during sleep at night due to irritation of the urethra, spinal diseases, diabetes, etc. is not enuresis. It is more common in childhood. According to statistics, 10-20% of children wet the bed at the age of 4 and a half, and the highest incidence rate is in children aged 6-7. About 5% of children wet the bed at the age of 9, and only 2% of children still wet the bed at the age of 15. In the gender ratio of this disease, the ratio of boys to girls is about 2:1. Most children with enuresis can recover on their own after a few years of onset, and the recovery rate of girls is higher, but some children, if not treated, will continue to have symptoms into adulthood.