intrinsic sphincter deficiency


in·trin·sic sphinc·ter de·fi·cien·cy

(ISD) (in-trin'zik sfingk'tĕr dĕ-fish'ĕn-sē) Refers to grade 3 of the stress urinary incontinence scale, which is the inability of the urethral walls to remain compressed with an increase in abdominal pressure as in straining at stool.

intrinsic sphincter deficiency

Abbreviation: ISD
Weakening of the urethral sphincter muscles, a frequent cause of stress urinary incontinence. See also: deficiency