Bedwetting, also known as enuresis, is usually seen in children who urinate involuntarily after sleeping, and the frequency of bedwetting decreases with age. 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. In contrast, secondary enuresis is seen in patients with urinary tract obstruction, cystitis, neurogenic bladder and other diseases. In addition to bedwetting at night, children often have symptoms such as frequent urination, urgent urination or difficulty in urination and fine urine flow during the day. The main treatment is to develop a good work and rest system and hygiene habits, avoid overwork, master the time and regularity 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. Treatment can also be done through interruption of urination exercises, urine holding exercises, and medication, depending on the patient’s situation. In summary, bedwetting in six-year-old children is a relatively common and acceptable situation, most of which is related to the delayed development of the cerebral cortex, deep sleep and irregular work and rest, and most of which can gradually improve with the increase in age.