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When we look at urinary output we have two terms used to describe urinary output that is below normal (or below 400 milliliters per 24 hour day). If urinary output is present but lower then the requirements then it is called Oliguria. The complete absence of urine output is known as Anuria. Anuria and Oliguria are extremely important to understand as urine output can be good indicators of kidney,urinay, or endocrine health. Decreased or no output can be indicators of potentially debilitating issues like kidney failure, tumors of the bladder, ureturs, or kidneys, and or BPH (benign prostatic hyperplasia).
