Baby diarrhea a night without urination is usually normal, diarrhea more often, the body water will be discharged with the stool, resulting in dehydration of the body, so that the urine is reduced, the phenomenon of not urinating. But the baby diarrhea is not normal, need to seek timely medical attention. Babies are young, the body’s function is not well developed, viral infections, improper feeding, abdominal cold, etc., may lead to baby diarrhea. If there is no timely supplementation of water, it is easy to cause water loss, there may be a dry mouth, few tears, etc., may also be the phenomenon of not urinating at night, the need to give the baby timely supplementation of water. Baby diarrhea, parents should do a good job of care, if the symptoms can not be relieved, need to go to the hospital in time for examination, to clarify the cause of diarrhea, active treatment.