Baby urine more to be combined with the specific circumstances of the baby, if necessary, laboratory tests urinary routine, urological ultrasound, comprehensive consideration, can not be generalized. 1, if the baby is in good spirits and good milk, height and weight normal range, especially infants due to small bladder capacity, if eaten too much water or hypertonic drinks, will lead to increased baby urine, this situation is normal, do not need to worry too much, also do not need to deal with. 2, if the baby is accompanied by frequent urination, urinary urgency, painful urination, crying and other symptoms, it may also be caused by fire or urinary tract infection. If it is a boy to observe whether there is excessive foreskin or prepuce, the key is to drink more water, pay attention to rest, keep dry, hygienic and clean. If it is caused by excessive circumcision or prepuce, the baby is circumcised at around five to eight years old. 3, may also be due to mental factors affected by mental polyhydramnios, must give the baby relaxed mood. 4, if the baby is accompanied by irritable thirst polyuria, if necessary, we should check the urinary routine, kidney function and electrolyte examination. If the baby is suffering from polyuria, he or she should use antidiuretic hormone drugs under the guidance of the doctor. So when your baby has polyuria, you must relax, find the right cause for your baby and treat it symptomatically. It is better not to use drugs indiscriminately for your baby, which will lead to damage of kidney function instead.