3-year-old baby bedwetting does not need special treatment for the time being, the neural development of babies at this age is not yet complete, and they cannot completely control urination on their own, so bedwetting of babies at this age is a normal physiological phenomenon, but the following methods can also be used to slow down the occurrence of this situation: 1, control the baby’s water intake after dinner, especially to reduce the situation of drinking milk at night; 2, wake up the baby at night and take the initiative to Bedwetting can be effectively reduced by taking 5-6 dried lychees after dinner; 4. If the baby is more than 6 years old, bedwetting should be considered as enuresis, which can be treated with oral promethazine hydrochloride if necessary, and further examination of pelvic plain film is needed to exclude occult spina bifida, which needs to be treated by orthopedics.