Pollakiuria refers to excessive daytime urinary frequency without an increase of 24 hour urine volume (polyuria).


Features of pollakiuria:

(1) The patient experiences a significant increase in daytime urinary frequency with small void volumes.

(2) It is term most often used in children but can occur at any age.

(3) Nocturnal voiding is typically normal.

(4) Polyuria should be excluded.

(5) Other urinary complaints (burning, altered urine stream, etc) should be absent.

(6) It is more apparent when a child has been previously toilet trained and had normal urinary frequency.


In many pediatric cases it is idiopathic, self-limited and resolves after several months. However, it may be the first sign of:

(1) tumor or other cause of bladder compression

(2) nephrolithiasis

(3) concentrated and acidic urine

(4) urinary tract infection

(5) bladder instability (overactivity)


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