Avoid 3-year-old baby bedwetting specific methods are as follows: First, in the daytime to avoid letting the baby over-excitement, especially in the 2 hours before bedtime, the baby will be due to the nervous system over-excitement caused by the cerebral cortex and did not return to normal, so it will cause the formation of bedwetting phenomenon in the bed after sleeping. Second, avoid drinking too much water before bedtime, especially to the baby to adjust, in the dinner also try to eat less liquid food, porridge, in the night also want to control the intake of fruits, sugary food will be conducive to the generation of urine, after urinating once before bedtime, at night in a fixed time to wake up the baby to urinate, so that the baby has a sense of urination. Third, to clarify whether it is caused by congenital diseases, there is no congenital sacrococcygeal spina bifida, to take the baby to the hospital for sacrococcygeal vertebrae frontal and lateral radiographs of the examination, if there is sacrococcygeal spina bifida according to the severity of the doctor’s guidance for further treatment.