urge incontinence

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Leakage of urine from the bladder that accompanies an insistent need to urinate.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun urinary incontinence that is generally attributable to involuntary contracts of the bladder muscle resulting in an urgent need to urinate accompanied by a sudden loss of urine; most common in people over 60 years of age