What is urine reduction?

Under normal circumstances oliguria: It refers to the urine volume within 24 hours is less than 400 ml. The reason for showing oliguria may be less than usual water consumption, a lot of sweating, the formation of urine volume caused by less. If unknown reasons suddenly oliguria, may be renal function showed failure. At this time should go to the regular hospital urology department to do urine routine examination, test renal function, check whether there are significant changes in urea nitrogen, creatinine, etc.