It may or may not be normal for a 2 year old baby to urinate less, depending on the specific condition. If it is caused by drinking less water, sweating more in summer and other reasons, are normal. This is a physiological phenomenon, generally do not need special treatment, appropriate hydration can be. If it is due to nephritis, acute tubular necrosis and other renal diseases, caused by the glomerular filtration rate is reduced so as to appear the phenomenon of low urine output. At this time the child’s body has already appeared lesions, so it is not a normal phenomenon. 2-year-old baby urine can be temporarily observed, if the physiological factors caused by low urine volume generally do not need treatment, timely supplementation of water can be relieved. If you exclude physiological factors, it is recommended to go to the hospital in a timely manner, to clarify the cause of the disease, and then follow the doctor’s instructions for treatment.