Definition of polyuria, oliguria and anuria

Under normal circumstances, the definition of polyuria refers to the normal person's daily urine volume of more than 2000 ml, then it is called polyuria, generally refers to the patient's urine volume per hour is not more than 40 ml, then it will show oliguria, and anuria generally refers to the case, the amount of urine produced in an hour is less than 10 ml, then it is called anuria. It is suggested that patients can judge according to their own urine volume. In case of abnormality, they must pay attention to it in time, and timely symptomatic treatment can effectively help improve this symptom.