ANATOMY

Detailed explanation-1: -The core principle of fluid balance is that the amount of water lost from the body must equal the amount of water taken in; for example, in humans, the output (via respiration, perspiration, urination, defecation, and expectoration) must equal the input (via eating and drinking, or by parenteral intake).

Detailed explanation-2: -Under the usual conditions of life, 3 – 4 liters of fluids a day will provide 2.5 to 3 liters of urine volume, and this is enough. The average healthy adult bladder holds about 1/2 liter, so this means 7 – 9 bathroom trips in 24 hours.

Detailed explanation-3: -If you drink 2 liters of water a day, which is the recommended daily amount, expect to urinate about once every four hours.

Detailed explanation-4: -Urine volume is considered excessive if it equals more than 2.5 liters per day. A “normal” urine volume depends on your age and gender. However, less than 2 liters per day is usually considered normal. Excreting excessive volumes of urine is a common condition but should not last more than several days.

Detailed explanation-5: -For a normal individual, 1 ½-2 litres of urine output is required per day, so a minimum input of 2 litres of water per day is required.