A 50-year old woman complains of leakage of urine. Other than genuine stress urinary incontinence, the most common cause of urinary leakage is ?

Urinary incontinence is of two main types: stress and urge urinary incontinence, that may occur in isolation or present as mixed urinary incontinence. Stress incontinence is the involuntary loss of urine when intravesical pressure exceeds the maximum urethral pressure with increase in the abdominal pressure i.e. coughing or sneezing Although stress incontinence is the most common type of urinary continence in all women, urgency incontinence is the most common form of incontinence in older women. Urge urinary incontinence is the involuntary leakage of urine accompanied by or immediately preceded by urgency. This is a symptom-based diagnosis; the cause may or may not be detrusor overactivity, based on urodynamic observation