What are the treatment options for polyuria?

Polyuria is the medical term for excessive urination, which can mean needing to urinate frequently with either small or large amounts of urine produced at each bathroom visit. The most common cause of urinary frequency with small urine amounts is an irritated bladder from an infection or interstitial cystitis (inflammation without infection). High urine output can happen just from drinking a lot of fluids or due to a medical problem such as diabetes mellitus (high blood sugar), diabetes insipidus (the kidney can’t concentrate urine, hypercalcemia (a high blood calcium level), or kidney damage.