It is also normal for an eight-month-old baby to not urinate at night, which may be related to the baby’s low water intake, low milk intake and other phenomena. Some babies can already save their tummies at eight months. As long as the amount of urine is normal in the morning and the frequency and amount of urine during the day, there is no need to worry too much. Eight-month-old babies, usually should try to give the baby more warm water, eat more apples, pears, grapes, dragon fruit and other fruits rich in vitamin C, you can also give the baby some soup and porridge, to give the baby to ensure that the adequate supply of water.