Drinking water during the day and urinating less and more at night may be caused by physiological factors, prostate enlargement, diabetes and other factors. 1. Physiological factors: drinking water during the day, but some strenuous exercise, sweating more, it will lead to less urine. In the evening before going to bed, the same drink too much water, but night sweating less, urine production increased, there will be frequent urination as well as increased urine phenomenon. 2. Prostatic hyperplasia: a benign lesion, at night when you sleep, may bladder will be frequent stimulation of the gland, there will be more urine phenomenon, manifested in increased urination, urination does not increase. 3. diabetes: for example, type 2 diabetes, can lead to patients urinate less during the day as well as the phenomenon of more urine at night, may also be accompanied by fatigue, drinking and other symptoms, can induce ketoacidosis in severe cases. Drinking water during the day to urinate less at night to urinate more, and there are other abnormalities, should be alert to disease factors, it is recommended to seek medical examination and treatment.