How many milliliters of urine does a normal person urinate a day?

The total amount of urine excreted by the human body in 24 hours should be maintained between 1000-2000ml. If it is more than 3000ml, it belongs to polyuria. If it is less than 400ml, it belongs to oliguria. The amount of urine excreted by the human body is mainly based on the environmental temperature, the amount of drinking water, the amount of activity and the amount of non-dominant water loss, such as sleeping with mouth or working in high temperature environment. Loss of water through skin mucosa can be significantly affected. If urine shows a decrease or increase, the patient should go to the urology department for examination in time. The decrease of urine is mainly caused by kidney disease. If urine suddenly increases, physiological regulation caused by drinking a lot of water should be excluded. Diabetes insipidus should be excluded. Disease screening should be carried out according to the specific changes in urine volume.