Why drink a lot of water and urinate less

Drink a lot of water but urinate less, this situation must cause attention, pay attention to whether our body has edema, palpitation, chest distress. Should test urine routine, kidney function, observe whether there is abnormal kidney function. If the urine volume is very small, and urine routine, kidney function test is normal, indicating that the water to drink is not enough, the body needs to add a lot of water. Especially in hot environment, eat salty food, in the process of food consumption, will consume a lot of water, so even if drink more water, urine volume will be less. If drink more water less urine, renal function is abnormal, suggesting renal failure, to the hospital, for further examination and treatment.