Five-year-old baby bedwetting at night is generally not normal, clinically known as enuresis, can be caused by a variety of factors, including genetic, psychological, environmental, organic diseases and other factors, parents need to promptly identify and make the appropriate treatment. Common causes: 1, genetic factors: some children’s parents have a similar medical history, suggesting a genetic tendency; 2, lifestyle habits: drinking a lot of water before bedtime or consuming watermelon, pears and other foods with high water content and diuretic effect lead to increased nocturnal urination and bedwetting; 3, mental factors: excessive excitement or fear during the day, such as receiving new toys, being physically punished, etc. may produce nocturnal enuresis; 4, environmental factors. Changing living environment such as moving house, changing schools, etc., children have difficulty adapting for a short period of time and urine loss occurs; 5. Organic disease factors: It can be secondary to urinary system diseases, such as urinary tract infection, urinary tract deformity, etc., neurological diseases, such as spinal bulge, and systemic diseases, such as tic disorder, etc., which can produce nocturnal enuresis. Second, treatment measures: 1, non-organic diseases caused by: mainly symptomatic treatment and behavioral and psychological intervention. Medications such as desmopressin and anticholinergics can be used to reduce nocturia. Behavioral interventions include limiting the amount of water drunk two hours before bedtime, emptying urine before bedtime, and exercising bladder function such as holding urine appropriately. Psychological interventions require parents to understand and guide their children, make them realize that bedwetting is not a fault, avoid blaming and scolding, and help the affected children build self-confidence. 2. Organic diseases cause: If urinary infections cause enuresis, anti-infection treatment can be carried out under the guidance of a doctor, and more water can be drunk to pay attention to urethral cleaning. For neurological diseases, such as enuresis caused by spinal membrane bulging, surgical treatment can be used to remove the bulging part of the spinal membrane, suture it, and close the wound to form a normal spinal canal structure. In the case of enuresis caused by tic disorder, medication can be used to reduce the symptoms of tic disorder by rationalizing the child’s daily routine, avoiding excessive stress and fatigue, and strengthening education and training. In this category, the cause needs to be promptly identified and the symptoms can usually disappear after treatment for the primary cause.