Frequent urination, the need to urinate many times during the day and at night (nocturia), or both, but normal or less than normal amounts. The frequency may be accompanied by a feeling of emptying an urgent need (urinary urgency). Frequent urination is distinguished from a polyuria, in which a urinary excretion of> 3 l / day occurs. Pathophysiology Urinary frequency arises usually from diseases of the lower urogenital tract. An…

September 3, 2018