Enuresis is the involuntary passing of urine during sleep at night, a condition known as enuresis. The main causes of enuresis are delayed development of the cerebral cortex, which results in uninhibited contractions of the bladder’s detrusor muscle during sleep, and psychological factors such as lack of affection in children. Urinary loss can also be genetic, such as having parents and siblings with enuresis. Urinary loss can be relieved by bladder training, which usually involves drinking as much water as possible during the day to expand the bladder capacity. When urinating, you can try to hold it in until it becomes intolerable. Urinary loss can also be treated with anticholinergic medications, such as oxybutynin, under the advice of a physician, which works by the mechanism of relieving bladder smooth muscle spasms and relaxing the forced urinary muscles. Patients with symptoms of enuresis should go to the hospital as soon as possible to cooperate with the doctor for diagnosis and treatment.