What causes bowel incontinence and when to see a doctor

Bowel incontinence happens when you cannot control when stool leaves your body. The causes vary widely — some are temporary, some are long-term. Common reasons include damage to the muscles that hold stool (the anal sphincters), nerve damage from childbirth or surgery, chronic diarrhea, severe constipation, inflammatory bowel disease, or neurological conditions like stroke or spinal cord injury. Age alone does not cause it, but the muscles do weaken over time.

You should see your doctor as a first step, not because incontinence is shameful but because the treatment depends entirely on what is causing it. A doctor can run tests — usually a physical exam and sometimes imaging or muscle testing — to find the source. Once they know the cause, they can recommend the right approach, whether that is medication, physical therapy, dietary changes, or in some cases surgery.

Do not wait months hoping it will resolve on its own. The longer incontinence goes untreated, the more it can affect your skin health, social life, and mental health. Many causes respond well to early treatment.

Key Takeaways

  • Bowel incontinence has different causes — nerve damage, muscle weakness, chronic diarrhea, constipation — and treatment depends on finding out which one applies to you.
  • Your doctor can diagnose the cause through physical exam and sometimes imaging tests, then recommend medication, pelvic floor exercises, dietary changes, or other treatments.
  • Dietary fiber, fluids, and bowel training (setting a regular time to use the toilet) help many people regain control without medication.
  • Protective products like absorbent pads and moisture-barrier creams prevent skin damage while you work on the underlying cause.
  • If conservative treatments do not work, surgical options exist — including sphincter repair or nerve stimulation — that your doctor can discuss with you.

Medical treatments your doctor may recommend

If your incontinence is caused by diarrhea or loose stool, your doctor may prescribe medications that slow bowel movement — loperamide (Imodium) or diphenoxylate (Lomotil) are common choices. These work by thickening stool and giving your sphincter muscles more time to hold. If constipation is the problem, stool softeners or osmotic laxatives may help, because impacted stool can actually cause leakage around the blockage.

For incontinence caused by weak sphincter muscles, your doctor may refer you to a pelvic floor physical therapist. These therapists teach exercises (often called Kegel exercises for bowel control) that strengthen the muscles around the anus. You do these exercises at home, usually daily, and improvement often takes weeks to months. Some therapists use biofeedback — a machine that shows you when you are squeezing the right muscles — to make the exercises more effective.

If nerve damage is the cause, treatment depends on what damaged the nerve. Diabetes-related nerve damage may improve with better blood sugar control. Nerve damage from childbirth or surgery may improve over time with pelvic floor therapy, though some damage is permanent.

Bowel training and dietary changes that work

Bowel training means setting a regular time each day to sit on the toilet, usually 15 to 45 minutes after a meal (when your bowel is most active). You sit for several minutes even if nothing happens, training your body to expect and respond to that signal. Over weeks, your bowel may start to move at that predictable time, reducing accidents at other times. This works best when combined with adequate fiber and fluids.

Dietary fiber — from vegetables, fruits, whole grains, and beans — makes stool firmer and easier to control. Aim for 25 to 35 grams per day, but add it slowly over a week or two, because too much too fast causes bloating and gas. Drink enough water throughout the day; dehydration makes stool hard and constipation worse. Limit foods that trigger loose stool for you personally — this varies by person, but common culprits are caffeine, alcohol, high-fat foods, and artificial sweeteners.

Keep a straightforward log for a week: note what you ate, when you had bowel movements, and when accidents happened. Patterns often emerge. If you see that coffee or a certain food triggers incontinence, you can test removing it and see if accidents decrease.

Surgical and advanced treatment options

If conservative treatments do not work after several months, surgery may be an option. Sphincteroplasty is a procedure to repair torn or weakened anal sphincter muscles, usually after childbirth or trauma. Success rates vary, and the repair can weaken again over time, but it helps many people regain significant control.

Sacral nerve stimulation (also called sacral neuromodulation) is a newer option. A small device, similar to a pacemaker, is implanted under the skin and sends mild electrical pulses to the nerves that control bowel function. It does not work for everyone, but studies show it reduces incontinence episodes in about 70 percent of people who try it. Your doctor will do a trial period first — a temporary electrode placed for one to two weeks — to see if you respond before committing to surgery.

A colostomy is a surgical opening in the abdomen that diverts stool into a pouch worn on the skin. This is usually considered only when other treatments have failed and incontinence severely affects quality of life. It requires daily management but gives complete control over when and where elimination happens.

Protective products and skin care while treating the cause

While you work with your doctor on the underlying cause, protective products prevent skin breakdown and allow you to stay active. Absorbent pads designed for bowel incontinence (not urinary incontinence pads, which are different) come in various sizes and absorbency levels. Disposable pull-up style briefs, pads that fit inside regular underwear, and bed pads all have their place depending on your situation.

Skin care is critical. Stool is acidic and damages skin quickly. After each accident, wash the area gently with warm water and pat dry — do not rub. explore a moisture barrier cream (zinc oxide or petroleum-based products work well) to protect skin from the next contact. Change pads promptly; leaving wet or soiled material against skin causes breakdown within hours.

Moisture-wicking underwear and breathable pads reduce the risk of fungal infections, which are common with incontinence. If you notice redness, itching, or a rash that does not improve with barrier cream in a few days, contact your doctor — you may have a yeast or bacterial infection that needs treatment.

When to seek urgent care or a specialist

Contact your doctor right away if incontinence comes on suddenly, especially if it is accompanied by loss of bladder control, numbness in the genital area, or inability to feel when you need to go. These can signal a spinal cord problem that needs when ready attention.

If you have tried conservative treatments for three to six months without improvement, ask your doctor for a referral to a colorectal surgeon or gastroenterologist who specializes in incontinence. They can order more detailed testing (like anorectal manometry, which measures sphincter strength, or endoscopic ultrasound) and discuss surgical options if appropriate.

Mental health matters too. Incontinence often causes shame, depression, and social withdrawal. If you are avoiding activities or feeling hopeless, talk to your doctor about counseling or support groups. Many communities have incontinence support groups, and online communities exist for people managing this condition.

Frequently Asked Questions

How long does it take for bowel training to work?

Most people see some improvement within two to four weeks if they stick to a regular toilet schedule, but full benefit can take two to three months. Consistency matters more than perfection — missing a day or two does not erase progress, but skipping regularly slows improvement.

Can pelvic floor exercises fix bowel incontinence on their own?

They work best for incontinence caused by weak sphincter muscles, and success rates are highest when combined with bowel training and dietary changes. If incontinence is caused by diarrhea, nerve damage, or other factors, exercises alone may not be enough, but they still help most people.

Is bowel incontinence a normal part of aging?

No. While the muscles do weaken with age, incontinence is not inevitable. Many older adults never experience it. If it develops, it signals an underlying cause that treatment can often improve or resolve.

What if I have both bowel and urinary incontinence?

Both can happen together, especially after childbirth or with neurological conditions. The same pelvic floor physical therapist can address both, and your doctor will treat any underlying causes. Tell your doctor about both problems so they understand the full picture.

Can diet alone stop bowel incontinence?

Diet helps when incontinence is caused by diarrhea or constipation, but not when it is caused by muscle or nerve damage. Your doctor can tell you whether diet changes are likely to solve your specific situation or whether you need additional treatment.