Baby urine smell is very big, may be less drinking water, sweating, do not pay attention to hygiene and other physiological factors, may also be caused by urinary tract infection and other pathological reasons. Baby if the amount of drinking water is relatively small, coupled with the baby is more active, sweating more easily caused by the concentration of urine, resulting in urine smell is relatively large, by supplementing the water, the amount of urine increased, the smell of urine will be significantly improved, if the baby wet clothing is not replaced in a timely manner, coupled with the local cleanliness is not enough, it is easy to cause urine residue, resulting in urine smell is relatively large. If the baby has a urinary tract infection, there can be frequent urination, urinary urgency, cloudy urine, urine smell is also relatively large. If the baby by drinking more water, maintain hygiene, the smell of urine is still relatively large, you need to go to the hospital to do urine routine and other aspects of the examination, to rule out infections of the urinary system and other diseases, if any abnormalities, the need for early treatment.