Bedwetting at night when you dream of going to the toilet may be due to delayed cerebral cortex development, too deep sleep, organic diseases, local stimulation of the genitourinary organs and so on. 1. Delayed cerebral cortex development: delayed cerebral cortex development can not inhibit the spinal cord urinary center, after sleep, the forced urinary muscles appear uninhibited contraction, the urine will be discharged. 2. Deep sleep: these patients sleep very deeply at night is not easy to wake up, can not accept the urine from the bladder, and wake up reflex urination. 3. Organic diseases: such as urinary tract infections, urolithiasis, epileptic seizures, intellectual developmental disorders, neurological lesions. 4. Local irritation of the genitourinary organs: such as phimosis, hypospadias, vulvovaginitis, congenital urethral deformity, etc., as well as spina bifida, diabetes mellitus and other systemic diseases. If there are many reasons for bedwetting at night when you dream of going to the toilet, it is recommended that you consult a doctor in time to determine the cause of the disease and then treat it.