What is urinary incontinence in women?
Millions of women experience involuntary loss of urine called urinary incontinence (UI). Some women may lose a few drops of urine while running or coughing. Others may feel a strong, sudden urge to urinate just before losing a large amount of urine. Many women experience both symptoms. UI can be slightly bothersome or totally debilitating. For some women, the risk of public embarrassment keeps them from enjoying many activities with their family and friends. Urine loss can also occur during sexual activity and cause tremendous emotional distress.

Women experience UI twice as often as men. Pregnancy and childbirth, menopause, and the structure of the female urinary tract account for this difference. But both women and men can become incontinent from neurologic injury, birth defects, stroke, multiple sclerosis, and physical problems associated with aging.

Older women experience UI more often than younger women. But incontinence is not inevitable with age. UI is a medical problem. Your doctor or nurse can help you find a solution. No single treatment works for everyone, but many women can find improvement without surgery.

Incontinence occurs because of problems with muscles and nerves that help to hold or release urine. The body stores urine -- water and wastes removed by the kidneys -- in the bladder, a balloon-like organ. The bladder connects to the urethra, the tube through which urine leaves the body.

During urination, muscles in the wall of the bladder contract, forcing urine out of the bladder and into the urethra. At the same time, sphincter muscles surrounding the urethra relax, letting urine pass out of the body. Incontinence will occur if your bladder muscles suddenly contract or the sphincter muscles are not strong enough to hold back urine. Urine may escape with less pressure than usual if the muscles are damaged, causing a change in the position of the bladder. Obesity, which is associated with increased abdominal pressure, can worsen incontinence. Fortunately, weight loss can reduce its severity.

What are the types of incontinence?
If coughing, laughing, sneezing, or other movements that put pressure on the bladder cause you to leak urine, you may have stress incontinence. Physical changes resulting from pregnancy, childbirth, and menopause often cause stress incontinence. This type of incontinence is common in women and, in many cases, can be treated.

Childbirth and other events can injure the scaffolding that helps support the bladder in women. Pelvic floor muscles, the vagina, and ligaments support your bladder (see figure 2). If these structures weaken, your bladder can move downward, pushing slightly out of the bottom of the pelvis toward the vagina. This prevents muscles that ordinarily force the urethra shut from squeezing as tightly as they should. As a result, urine can leak into the urethra during moments of physical stress. Stress incontinence also occurs if the squeezing muscles weaken.

Stress incontinence can worsen during the week before your menstrual period. At that time, lowered estrogen levels might lead to lower muscular pressure around the urethra, increasing chances of leakage. The incidence of stress incontinence increases following menopause.

How is incontinence treated?
Behavioral remedies: bladder retraining and Kegel exercises

By looking at your bladder diary, the doctor may see a pattern and suggest making it a point to use the bathroom at regular timed intervals, a habit called timed voiding. As you gain control, you can extend the time between scheduled trips to the bathroom. Behavioral treatment also includes Kegel exercises to strengthen the muscles that help hold in urine.
 

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