In this type of urinatery incontinence, muscles in the bladder get contract and cause urine urgency which become unable to stop. It occurs during the sudden change in position, for some people sound of running water and  Sex especially during orgasm. It is also known as reflex incontinence. You have an abrupt, forceful urge to urinate followed by an uncontrolled loss of urine. You may need to urinate often, including throughout the night. Urge incontinence may be caused by a small condition, such as infection, and also due to severe condition such as neurologic disorder or diabetes.

Home remedies
Keep a diary
Maintaining a voiding diary, or uro-log, will create a record of when you urinated and the circumstances surrounding it. The diary should include the time of day of urination or leakage; the type and amount of fluid intake that preceded it; the amount voided in ounces (pharmacies carry measuring devices that fit right inside the toilet bowl); the amount of leakage (small, medium, or large); the activity engaged in when leakage occurred; and whether or not an urge to urinate was present. Keeping such a diary for at least four days, if not a full week, before you see a doctor can help him or her determine what type of incontinence you have and the course of treatment. When you see a doctor, take along a list or the actual bottles of any prescription or over-the-counter medicines you have been taking, because some medications can cause incontinence.

Lose weight
Carrying extra fat in the abdominal region puts pressure on the bladder and stresses the pelvic muscles.

Do not smoke
Here's another reason to give up the habit. Nicotine can irritate the bladder, and for heavy smokers, coughing can contribute to stress incontinence.

Wear clothes that are easy to remove
Women's clothing, in particular, can pose a problem, especially for those with urge incontinence. Jumpsuits, unitards, and one-piece swimsuits can slow you down when you're in a hurry to go because these one-piece outfits must be removed from the top down. Skip such suits or look for ones with a snapped opening at the crotch for quick and easy removal. (You should also probably skip any skintight pants or skirts and control-top hose that put unnecessary pressure on your lower abdomen in addition to being difficult to pull down.) You might also want to carry extra clothing with you so that you can change if an accident occurs. If your clothes happen to become stained with urine, soak them for three hours in a mixture of one gallon water and one cup dishwashing detergent.

Weight for results
Resistive exercise -- when force is exerted against a weight -- can be used to strengthen the sphincter muscles of the urethra and other muscles in the pelvic region that are important to regaining continence. Cones that are about the size of a tampon and that come in varying weights are designed for use in the vagina (women) or rectum (men). When a cone is inserted, the muscles in the region must contract in order to hold the weight and not let it drop. When done properly -- and consistently -- these exercises should begin to show results within a few months. These weight sets are available from physicians, who can guide your use of the cones, or from medical-supply stores. Be sure to carefully read and follow the accompanying instructions on proper use for best results. Start by holding in the lightest weight for 15 minutes, two times a day. Once successful at that weight, try the next heaviest weight for the same amount of time. Some versions of these cones come with an electronic biofeedback system, called a perineometer, which reports on the amount of pressure you're applying to the inserted cone.