Three-year-old children old bedwetting may be due to too much water before bedtime, too much excitement during the day, urinary tract infections, etc., can be relieved by drinking less water before going to bed, regular urination at regular intervals, and anti-infection treatment. 1. less water before going to bed: three-year-old child old bedwetting may be caused by too much water before going to bed, you can properly control the amount of water before going to bed, to avoid drinking too much milk, fruit juice and other drinks. Every night before going to bed to take the child to urinate, can effectively alleviate the phenomenon of bedwetting. 2. regular urination: three-year-old children old bedwetting may be due to play during the day, the cerebral cortex is too excited to cause, you can regularly wake up the baby at night to remind the urination, after training, most of the children’s bedwetting will be improved. 3. anti-infection treatment: three-year-old child old bedwetting may be due to urinary tract bacterial infection, you can wash and change underwear every day to keep the urethra clean, hygiene, oral anti-infective drugs such as cefaclor and other relief when necessary. Three-year-old children old bedwetting can also be relieved through psychological counseling, improve diet and other methods, if the bedwetting is particularly frequent, must promptly consult a doctor. Under the guidance of the doctor, follow the doctor’s prescription medication or take other appropriate treatment program.