Fecal incontinence

Overview

Fecal incontinence is not being able to control bowel movements. Stool leaks from the rectum without warning. Fecal incontinence ranges from an occasional leakage of stool while passing gas to a complete loss of bowel control. Fecal incontinence is sometimes called bowel incontinence.

Common causes of fecal incontinence include diarrhea, constipation, and muscle or nerve damage. The muscle or nerve damage may be associated with aging or with giving birth.

Whatever the cause, fecal incontinence can be difficult to discuss. But don't shy away from talking to your doctor about this common problem. Treatments can improve fecal incontinence and your quality of life.

Symptoms

Fecal incontinence may occur during an occasional bout of diarrhea. But for some people, fecal incontinence happens a lot. People with this condition may not be able to stop the urge to defecate. It may come on so suddenly that you can't make it to the toilet in time. This is called urge incontinence.

Another type of fecal incontinence occurs in people who are not aware of the need to pass stool. This is called passive incontinence.

Fecal incontinence may happen with other bowel problems, such as:

  • Diarrhea.
  • Constipation.
  • Gas and bloating.

When to see a doctor

See your health care provider if you or your child develops fecal incontinence. This is especially important if it happens a lot, is severe or causes emotional distress. Often, people are too embarrassed to tell a provider about fecal incontinence. But the sooner you're evaluated, the sooner you may find some relief from your symptoms.

Causes

For many people, there is more than one cause of fecal incontinence.

Causes can include:

  • Muscle damage. Injury to the rings of muscle at the end of the rectum may make it difficult to hold in stool. These rings are known as the anal sphincter. This kind of damage can occur during childbirth. This is most commonly due to having an episiotomy or using forceps during delivery.
  • Nerve damage. Injury to the nerves that sense stool in the rectum or those that control the anal sphincter can lead to fecal incontinence. Many things can damage these nerves, including:
    • Childbirth.
    • Repeated straining during bowel movements.
    • Long-lasting constipation.
    • Spinal cord injury.
    • Stroke.
    • Diabetes.
    • Multiple sclerosis.
  • Constipation. Chronic constipation may cause a dry, hard mass of stool to form in the rectum and become too large to pass. This is known as stool impaction. The muscles of the rectum and intestines stretch and eventually weaken. This allows watery stool from farther up the digestive tract to move around the impacted stool and leak out. Long-lasting constipation also may cause nerve damage that leads to fecal incontinence.
  • Diarrhea. Solid stool is easier to hold in the rectum than is loose stool, so the loose stools of diarrhea can cause or worsen fecal incontinence.
  • Hemorrhoids. Hemorrhoids are swollen veins in the rectum. These swollen veins can keep the anus from closing completely, letting stool leak out.
  • Loss of storage capacity in the rectum. Usually, the rectum stretches to accommodate stool. If the rectum is scarred or stiff it can't stretch as much as it needs to, and excess stool can leak out. Things such as surgery, radiation treatment or inflammatory bowel disease can stiffen and scar the rectum.
  • Surgery. Surgery involving the rectum and anus, such as hemorrhoid removal, can cause muscle and nerve damage that leads to fecal incontinence.
  • Rectal prolapse. Fecal incontinence can be a result of this condition, in which the rectum drops down into the anus. The stretching of the rectal sphincter by prolapse damages the nerves that control the rectal sphincter. The longer this lasts, the less likely the nerves and muscles will recover.
  • Rectocele. In women, fecal incontinence can occur if the rectum protrudes through the vagina. This condition is known as rectocele.

Risk factors

A number of factors may increase your risk of developing fecal incontinence, including:

  • Age. Although fecal incontinence can occur at any age, it's more common in adults over 65.
  • Being female. Fecal incontinence can be a complication of childbirth. Recent research also has found that women who take menopausal hormone replacement therapy have a modest increased risk of fecal incontinence.
  • Nerve damage. People who have long-standing diabetes, multiple sclerosis, or back trauma from injury or surgery may be at risk of fecal incontinence. These conditions can damage nerves that help control defecation.
  • Dementia. Fecal incontinence is often present in late-stage Alzheimer's disease and dementia.
  • Physical disability. Being physically disabled may make it difficult to reach a toilet in time. An injury that caused a physical disability also may cause rectal nerve damage, leading to fecal incontinence.

Complications

Complications of fecal incontinence may include:

  • Emotional distress. Losing control over bodily functions can lead to feeling uneasy about being out in public. It's common for people with fecal incontinence to try to hide the problem or to avoid social engagements.
  • Skin irritation. The skin around the anus is delicate and sensitive. Repeated contact with stool can lead to pain and itching. It also may lead to sores, also called ulcers. Ulcers often require medical treatment.

Prevention

Depending on the cause, it may be possible to improve or prevent fecal incontinence. These actions may help:

  • Reduce constipation. Increase your exercise, eat more high-fiber foods and drink plenty of fluids.
  • Control diarrhea. Treating or eliminating the cause of the diarrhea, such as an intestinal infection, may help you avoid fecal incontinence.
  • Do not strain. Straining during bowel movements can eventually weaken anal sphincter muscles or damage nerves.

Diagnosis

Your health care provider may ask questions about your condition and perform a physical exam. This usually includes a visual inspection of your anus. A probe may be used to examine this area for nerve damage. Usually, this touching causes the anal sphincter to contract and the anus to pucker.

Medical tests

A number of tests are available to help pinpoint the cause of fecal incontinence:

  • Digital rectal exam. A provider inserts a gloved and lubricated finger into the rectum to evaluate the strength of the sphincter muscles and to check for any irregularities in the rectal area. During the exam, your provider may ask you to bear down. This is to check for rectal prolapse.
  • Balloon expulsion test. A small balloon is inserted into the rectum and filled with water. You'll then be asked to go to the toilet to expel the balloon. If it takes longer than one to three minutes to do so, you likely have a defecation disorder.
  • Anal manometry. A narrow, flexible tube is inserted into the anus and rectum. A small balloon at the tip of the tube may be expanded. This test helps measure the tightness of the anal sphincter and the sensitivity and functioning of the rectum.
  • Anorectal ultrasonography. A narrow, wand-like instrument is inserted into the anus and rectum. The instrument produces video images that allow your provider to check the structure of your sphincter.
  • Proctography. X-ray video images are made while you have a bowel movement on a specially designed toilet. The test measures how much stool the rectum can hold. It also evaluates how well your body expels stool.
  • Colonoscopy. A flexible tube is inserted into the rectum to inspect the entire colon.
  • Magnetic resonance imaging (MRI). An MRI can provide clear pictures of the sphincter to determine if the muscles are intact. It also can provide images during defecation. This is called defecography.

Treatment

Medications

Depending on the cause of fecal incontinence, options include:

  • Anti-diarrheal drugs such as loperamide (Imodium A-D) and those containing diphenoxylate and atropine (Lomotil).
  • Bulk laxatives such as methylcellulose (Citrucel) and psyllium (Metamucil), if chronic constipation is causing your incontinence.

Exercise and other therapies

If muscle damage is causing fecal incontinence, your doctor may recommend a program of exercise and other therapies to restore muscle strength. These treatments can improve anal sphincter control and the awareness of the urge to defecate.

Options include:

  • Kegel exercises

    Kegel exercises strengthen the pelvic floor muscles. These muscles support the bladder and bowel and in women, the uterus. Strengthening these muscles may help reduce incontinence. To perform Kegel exercises, contract the muscles that you use to stop the flow of urine.

    Hold the contraction for three seconds, then relax for three seconds. Repeat this pattern 10 times. As your muscles strengthen, hold the contraction longer. Gradually work your way up to three sets of 10 contractions every day.

  • Biofeedback. Specially trained physical therapists teach simple exercises that can increase anal muscle strength. These exercises can help:

    • Strengthen pelvic floor muscles.
    • Sense when stool is ready to be released.
    • Contract the muscles if having a bowel movement at a certain time is inconvenient.

    Sometimes the training is done with the help of anal manometry and a rectal balloon.

  • Bowel training. Your doctor may recommend making a conscious effort to have a bowel movement at a specific time of day: for example, after eating. Establishing when you need to use the toilet can help you gain greater control.
  • Bulking agents. Injections of nonabsorbable bulking agents can thicken the walls of the anus. This helps prevent leakage.
  • Sacral nerve stimulation. The sacral nerves run from your spinal cord to muscles in the pelvis. They regulate the sensation and strength of your rectal and anal sphincter muscles. Implanting a device that sends small electrical impulses to the nerves can strengthen muscles in the bowel.
  • Posterior tibial nerve stimulation. This minimally invasive treatment stimulates the posterior tibial nerve at the ankle. In a large study, however, this therapy didn't prove to be significantly better than a placebo.
  • Vaginal balloon (Eclipse System). This is a pump-type device inserted in the vagina. The inflated balloon results in pressure on the rectal area, leading to a decrease in the number of episodes of fecal incontinence.
  • Radiofrequency therapy. This involves delivering radiofrequency energy to the wall of the anal canal to help improve muscle tone. This is sometimes called the Secca procedure. Radiofrequency therapy is minimally invasive and is generally performed under local anesthesia and sedation. However, this procedure isn't always covered by insurance.

Surgery

Treating fecal incontinence may require surgery to correct an underlying problem, such as rectal prolapse or sphincter damage caused by childbirth. The options include:

  • Sphincteroplasty. This procedure repairs a damaged or weakened anal sphincter that occurred during childbirth. Doctors identify an injured area of muscle and free its edges from the surrounding tissue. They then bring the muscle edges back together and sew them in an overlapping fashion. This helps strengthen the muscle and tighten the sphincter. Sphincteroplasty may be an option for people trying to avoid colostomy.
  • Treating rectal prolapse, a rectocele or hemorrhoids. Surgical correction of these problems will likely reduce or eliminate fecal incontinence. The longer the prolapse goes untreated, the higher will be the risk of fecal incontinence not resolving after surgery.
  • Colostomy, also called bowel diversion. This surgery diverts stool through an opening in the abdomen. Doctors attach a special bag to this opening to collect the stool. Colostomy is generally considered only after other treatments haven't been successful.

Lifestyle and home remedies

Dietary changes

You may be able to gain better control of your bowel movements by:

  • Keeping track of what you eat. What you eat and drink affects the consistency of your stools. Make a list of what you eat for a few days. You may discover a connection between certain foods and your bouts of incontinence. Once you've identified problem foods, stop eating them and see if your incontinence improves.

    Foods can cause diarrhea or gas and worsen fecal incontinence. Common culprits include spicy foods, fatty and greasy foods, and dairy products. Caffeine-containing beverages and alcohol also can act as laxatives. Other foods that have a laxative effect include sugar-free gum and diet soda, which contain artificial sweeteners.

  • Getting adequate fiber. If constipation is causing fecal incontinence, your doctor may recommend eating fiber-rich foods. Fiber helps make stool soft and easier to control. If diarrhea is contributing to the problem, high-fiber foods also can add bulk to your stools and make them less watery.

    Fiber is predominately present in fruits, vegetables, and whole-grain breads and cereals. Aim for 25 grams (0.9 ounces) of fiber a day or more. But don't add it to your diet all at once. Too much fiber suddenly can cause uncomfortable bloating and gas.

  • Drink more water. To keep stools soft and formed, drink at least eight glasses of liquid, preferably water, a day.

Skin care

You can help avoid further discomfort from fecal incontinence by keeping the skin around your anus as clean and dry as possible. To relieve anal discomfort and eliminate any possible odor associated with fecal incontinence:

  • Wash with water. Gently wash the area with water after each bowel movement. Showering or soaking in a bath also may help.

    Soap can dry and irritate the skin. So can rubbing with dry toilet paper. Try using premoistened, alcohol-free, perfume-free towelettes or wipes.

  • Dry thoroughly. Allow the area to air-dry, if possible. If you're short on time, you can gently pat the area dry with toilet paper or a clean washcloth.
  • Apply a cream or powder. Moisture-barrier creams help keep irritated skin from having direct contact with feces. Be sure the area is clean and dry before you apply any cream. Nonmedicated talcum powder or cornstarch also may help relieve anal discomfort.
  • Wear cotton underwear and loose clothing. Tight clothing can restrict airflow, making skin problems worse. Change soiled underwear quickly.

When medical treatments can't completely eliminate incontinence, products such as absorbent pads and disposable underwear can help you manage the problem. If you use pads or adult diapers, be sure they have an absorbent wicking layer on top. This helps keep moisture away from your skin.

Coping and support

For some people, including children, fecal incontinence is a relatively minor problem. It's typically limited to occasional soiling of their underwear. For others, the condition can be devastating due to a complete lack of bowel control.

If you have fecal incontinence

You may feel reluctant to leave your house because you're concerned about making it to a toilet in time. To overcome that thought, try these practical tips:

  • Use the toilet right before you go out.
  • If you expect you'll be incontinent, wear a pad or a disposable undergarment.
  • Carry supplies for cleaning up and a change of clothing with you.
  • Know where toilets are located before you need them. This can help you get to them quickly.
  • Use nonprescription pills to reduce the smell of stool and gas. These are known as fecal deodorants.

Because fecal incontinence can be distressing, it's important to take steps to deal with it. Treatment can help improve your quality of life and raise your self-esteem.

Preparing for an appointment

You may start by seeing your primary health care provider. You may then be referred to a provider who specializes in treating digestive conditions, called a gastroenterologist.

Here's some information to help you get ready for your appointment.

What you can do

When you make the appointment, ask if there's anything you need to do in advance, such as fasting before having a specific test. Make a list of:

  • Your symptoms, including any that seem unrelated to the reason for your appointment.
  • Key personal information, including major stresses, recent life changes and family medical history.
  • All medications, vitamins or other supplements you take, including the doses.
  • Bring a family member or friend with you if possible, to help you remember the information you're given.
  • Make a list of questions to ask during the appointment.

For fecal incontinence, some basic questions to ask include:

  • What's likely causing my symptoms?
  • Other than the most likely cause, what are other possible causes for my symptoms?
  • What tests do I need?
  • Is my condition likely temporary or chronic?
  • What's the best course of action?
  • What are the alternatives to the primary approach you're suggesting?
  • I have other health conditions. Will treatment for fecal incontinence complicate my care for these conditions?
  • Are there restrictions I need to follow?
  • Should I see a specialist?
  • Are there brochures or other printed material I can have? What websites do you recommend?

What to expect from your doctor

Your provider is likely to ask you several questions, such as:

  • When did your symptoms begin?
  • Have your symptoms been continuous or do they come and go?
  • How severe are your symptoms?
  • Does anything seem to improve your symptoms?
  • What, if anything, appears to worsen your symptoms?
  • Do you avoid any activities because of your symptoms?
  • Do you have other conditions such as diabetes, multiple sclerosis or chronic constipation?
  • Do you have diarrhea?
  • Have you ever been diagnosed with ulcerative colitis or Crohn's disease?
  • Have you ever had radiation therapy to your pelvic area?
  • Were forceps used or did you have an episiotomy during childbirth?
  • Do you also have urinary incontinence?

What you can do in the meantime

Do not eat foods or do activities that worsen your symptoms. This might include avoiding caffeine, fatty or greasy foods, dairy products, spicy foods, or anything that makes your incontinence worse.

Last Updated Nov 3, 2022


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