Enuresis, also known as bedwetting, is usually seen in children who urinate involuntarily after going to bed, and the frequency of bedwetting decreases with age and resolves spontaneously. Generally, 5% of children have enuresis by the age of 10, and a small number of patients continue to have enuresis into adulthood. Enuresis is divided into primary enuresis and secondary enuresis. The causes of primary enuresis are directly related to delayed cortical development, deep sleep, psychological factors and genetic factors. The main treatment is to develop a good resting system and hygiene habits, avoid overwork, master the time and pattern of bedwetting, and wake up the child with an alarm clock at night to urinate 1 to 2 times. Sleep 1 to 2 hours during the day and avoid excessive excitement or strenuous exercise during the day to prevent sleeping too deeply at night. It can also be treated with interruption of urination exercises, urine holding exercises, and medication, depending on the patient’s condition. Most of these conditions are self-curing and no special treatment is required. Secondary enuresis is seen in patients with urinary tract obstruction, cystitis, neurogenic bladder and other diseases, and requires treatment. In summary, enuresis in children is relatively common, and most of them can gradually improve with age and the gradual development of the patient’s cerebral cortex, so there is no need to worry too much. Only a few pathological causes need to be treated.