It could be becasue your bladder is not emptying comeletely or it just may be a coincidence. I suggest you urinate before and after sex and if the incontinence persists see your doctor. I suggest you learn about behavioral treatment programs which include pelvic muscle exercises as well as bladder training for urgency and frequency. Pelvic muscle exercises strengthen muscles that support the bladder and the urethra. These exercises have been shown to decrease urinary leakage. Bladder retraining is controlling urgency using strategies that can help relax the bladder and delay voiding. I would also suggest dietary modifications. There are certain foods and beverages that contain ingredients that can cause bladder irritability. I list these on my website and they include any foods and drinks that contain caffeine such as coffee, tea, chocolate, soft drinks. Also we find that spicy foods, citrus foods, juices and tomato based products may also trigger urinary urgency/frequency and incontinence. You may find these URLs helpful: Behavioral treatments: http://www.seekwellness.com/incontinence/treatments4.h tm Pelvic floor muscle exercises: http://www.seekwellness.com/incontinence/pelvic_floor_ muscle_rehab.htm Diet: http://www.seekwellness.com/incontinence/treatments.ht m#diet