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. 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.
The Types of Urinary Incontinence
Stress:- Leakage of small amounts of urine during physical movement (coughing, sneezing, exercising).
Urge:- Leakage of large amounts of urine at unexpected times, including during sleep.
Overactive Bladder:- Urinary frequency and urgency, with or without urge incontinence.
Functional:- Untimely urination because of physical disability, external obstacles, or problems in thinking or communicating that prevent a person from reaching a toilet.
Overflow:- Unexpected leakage of small amounts of urine because of a full bladder.
Mixed:- Usually the occurrence of stress and urge incontinence together.
Transient:- Leakage that occurs temporarily because of a situation that will pass (infection, taking a new medication, colds with coughing).
- Bladder stress test—You cough vigorously as the doctor watches for loss of urine from the urinary opening.
- Urinalysis and urine culture—Laboratory technicians test your urine for evidence of infection, urinary stones, or other contributing causes.
- Ultrasound—This test uses sound waves to create an image of the kidneys, ureters, bladder, and urethra.
- Cystoscopy—The doctor inserts a thin tube with a tiny camera in the urethra to see inside the urethra and bladder.
- Urodynamics—Various techniques measure pressure in the bladder and the flow of urine.
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.
How do you do Kegel exercises?
The first step is to find the right muscles. One way to find them is to imagine that you are sitting on a marble and want to pick up the marble with your vagina. Imagine sucking or drawing the marble into your vagina.
Try not to squeeze other muscles at the same time. Be careful not to tighten your stomach, legs, or buttocks. Squeezing the wrong muscles can put more pressure on your bladder control muscles. Just squeeze the pelvic muscles. Don't hold your breath. Do not practice while urinating.
Repeat, but don't overdo it. At first, find a quiet spot to practice—your bathroom or bedroom—so you can concentrate. Pull in the pelvic muscles and hold for a count of three. Then relax for a count of three. Work up to three sets of 10 repeats. Start doing your pelvic muscle exercises lying down. This is the easiest position to do them in because the muscles do not need to work against gravity. When your muscles get stronger, do your exercises sitting or standing. Working against gravity is like adding more weight.
Be patient. Don't give up. It takes just 5 minutes a day. You may not feel your bladder control improve for 3 to 6 weeks. Still, most people do notice an improvement after a few weeks.
Some people with nerve damage cannot tell whether they are doing Kegel exercises correctly. If you are not sure, ask your doctor or nurse to examine you while you try to do them. If it turns out that you are not squeezing the right muscles, you may still be able to learn proper Kegel exercises by doing special training with biofeedback, electrical stimulation, or both.
Medicines for Overactive Bladder
If you have an overactive bladder, your doctor may prescribe a medicine to block the nerve signals that cause frequent urination and urgency.
Several medicines from a class of drugs called anticholinergics can help relax bladder muscles and prevent bladder spasms. Their most common side effect is dry mouth, although larger doses may cause blurred vision, constipation, a faster heartbeat, and flushing. Other side effects include drowsiness, confusion, or memory loss. If you have glaucoma, ask your ophthalmologist if these drugs are safe for you.
Some medicines can affect the nerves and muscles of the urinary tract in different ways. Pills to treat swelling (edema) or high blood pressure may increase your urine output and contribute to bladder control problems. Talk with your doctor; you may find that taking an alternative to a medicine you already take may solve the problem without adding another prescription.
Scientists are studying other drugs and injections that have not yet received U.S. Food and Drug Administration (FDA) approval for incontinence to see if they are effective treatments for people who were unsuccessful with behavioral therapy or pills.
Biofeedback uses measuring devices to help you become aware of your body's functioning. By using electronic devices or diaries to track when your bladder and urethral muscles contract, you can gain control over these muscles. Biofeedback can supplement pelvic muscle exercises and electrical stimulation to relieve stress and urge incontinence.
For urge incontinence not responding to behavioral treatments or drugs, stimulation of nerves to the bladder leaving the spine can be effective in some patients. Neuromodulation is the name of this therapy. The FDA has approved a device called InterStim for this purpose. Your doctor will need to test to determine if this device would be helpful to you. The doctor applies an external stimulator to determine if neuromodulation works in you. If you have a 50 percent reduction in symptoms, a surgeon will implant the device. Although neuromodulation can be effective, it is not for everyone. The therapy is expensive, involving surgery with possible surgical revisions and replacement.
Vaginal Devices for Stress Incontinence
One of the reasons for stress incontinence may be weak pelvic muscles, the muscles that hold the bladder in place and hold urine inside. A pessary is a stiff ring that a doctor or nurse inserts into the vagina, where it presses against the wall of the vagina and the nearby urethra. The pressure helps reposition the urethra, leading to less stress leakage. If you use a pessary, you should watch for possible vaginal and urinary tract infections and see your doctor regularly.
Injections for Stress Incontinence
A variety of bulking agents, such as collagen and carbon spheres, are available for injection near the urinary sphincter. The doctor injects the bulking agent into tissues around the bladder neck and urethra to make the tissues thicker and close the bladder opening to reduce stress incontinence. After using local anesthesia or sedation, a doctor can inject the material in about half an hour. Over time, the body may slowly eliminate certain bulking agents, so you will need repeat injections. Before you receive an injection, a doctor may perform a skin test to determine whether you could have an allergic reaction to the material. Scientists are testing newer agents, including your own muscle cells, to see if they are effective in treating stress incontinence. Your doctor will discuss which bulking agent may be best for you.
Surgery for Stress Incontinence
In some women, the bladder can move out of its normal position, especially following childbirth. Surgeons have developed different techniques for supporting the bladder back to its normal position. The three main types of surgery are retropubic suspension and two types of sling procedures.
Retropubic suspension uses surgical threads called sutures to support the bladder neck. The most common retropubic suspension procedure is called the Burch procedure. In this operation, the surgeon makes an incision in the abdomen a few inches below the navel and then secures the threads to strong ligaments within the pelvis to support the urethral sphincter. This common procedure is often done at the time of an abdominal procedure such as a hysterectomy.
Sling procedures are performed through a vaginal incision. The traditional sling procedure uses a strip of your own tissue called fascia to cradle the bladder neck. Some slings may consist of natural tissue or man-made material. The surgeon attaches both ends of the sling to the pubic bone or ties them in front of the abdomen just above the pubic bone.
Midurethral slings are newer procedures that you can have on an outpatient basis. These procedures use synthetic mesh materials that the surgeon places midway along the urethra. The two general types of midurethral slings are retropubic slings, such as the transvaginal tapes (TVT), and transobturator slings (TOT). The surgeon makes small incisions behind the pubic bone or just by the sides of the vaginal opening as well as a small incision in the vagina. The surgeon uses specially designed needles to position a synthetic tape under the urethra. The surgeon pulls the ends of the tape through the incisions and adjusts them to provide the right amount of support to the urethra.
If you have pelvic prolapse, your surgeon may recommend an anti-incontinence procedure with a prolapse repair and possibly a hysterectomy.
Supporting sutures in place following retropubic or transvaginal suspension (left). Sling in place, secured to the pubic bone (center). The ends of the transobturator tape supporting the urethra are pulled through incisions in the groin to achieve the right amount of support (right). The tape ends are removed when the incisions are closed.
Recent women's health studies performed with the Urinary Incontinence Treatment Network (UITN) compared the suspension and sling procedures and found that, 2 years after surgery, about two-thirds of women with a sling and about half of women with a suspension were cured of stress incontinence. Women with a sling, however, had more urinary tract infections, voiding problems, and urge incontinence than women with a suspension.
If you are incontinent because your bladder never empties completely-overflow incontinence-or your bladder cannot empty because of poor muscle tone, past surgery, or spinal cord injury, you might use a catheter to empty your bladder. A catheter is a tube that you can learn to insert through the urethra into the bladder to drain urine. You may use a catheter once in a while or on a constant basis, in which case the tube connects to a bag that you can attach to your leg. If you use an indwelling—long-term—catheter, you should watch for possible urinary tract infections.