ANATOMY

Detailed explanation-1: -Polyuria (/ˌpɒliˈjʊəriə/) is excessive or an abnormally large production or passage of urine (greater than 2.5 L or 3 L over 24 hours in adults). Increased production and passage of urine may also be termed diuresis.

Detailed explanation-2: -Excessive urination volume (or polyuria) occurs when you urinate more than normal. Urine volume is considered excessive if it equals more than 2.5 liters per day.

Detailed explanation-3: -uri·na·tion ˌyu̇r-ə-ˈnā-shən. : the act of urinating. called also micturition.

Detailed explanation-4: -The definition of oliguria is low urine output, while anuria means no urine output. Polyuria means excessive urine production. Paying attention to urine has been a medical tool for thousands of years.

Detailed explanation-5: -extreme thirst (polydipsia) peeing a lot, even at night (polyuria)