Baby more than 12 hours without urination condition is serious should be judged according to the baby’s specific circumstances, if the amount of food, sweating, usually not serious, if the baby there is vomiting, diarrhea, fever and other symptoms, or urinary diseases, etc., then it may be more serious, and need to be treated in a timely manner. Under normal circumstances, the baby every 24 hours should be 6 to 8 times urination, if the amount of food is less, sweating, there may be a temporary urine situation, if the baby with the amount of food increased, the number of bowel movements and the amount of urine is also back to normal, it is generally normal, parents should be advised to feed their babies on time as well as feeding water. If the baby has vomiting, diarrhea, fever and other symptoms, it may be upper respiratory tract infection, indigestion and other diseases, can lead to dehydration of the baby, thus appearing 12 hours without urine, urinary system diseases such as congenital renal anomalies, abnormal development of the urinary system, etc., may also lead to the baby without urine, at this time, may be more serious, and should be treated in a timely manner, so as not to lead to serious consequences. If the baby did not urinate for more than 12 hours, accompanied by other uncomfortable symptoms, parents are advised to take the baby to the hospital in time, and follow the doctor’s instructions for treatment.