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Multiple Sclerosis and Bowel Problems

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Because multiple sclerosis interrupts or slows the transmission of signals to and from the brain, the electrical impulses to the muscles that are involved in emptying your bowel can become disrupted.

What Types of Bowel Problems Affect People With Multiple Sclerosis?

Constipation, bowel incontinence (loss of bowel control), and diarrhea are problems that affect people with multiple sclerosis.

1. Constipation

Constipation is characterized by infrequent bowel movements (usually fewer than two bowel movements per week), or by frequent straining to void fecal matter.

Constipation is very common among people with MS. In general, poor diet (including consuming less than 20 grams of fiber per day), lack of physical activity, and depression all affect the digestive system. Medications and supplements may also contribute to constipation.

With MS, constipation may be caused by an interruption of impulses to the brain that signal the need for a bowel movement. MS may also prevent pelvic floor muscles from relaxing. These muscles are used to help void fecal matter. Also, MS may block the natural increase in activity of the colon following meals.

2. Bowel Incontinence

Bowel incontinence is the loss of voluntary bowel control. A person suffering from bowel incontinence may not be able to reach the bathroom fast enough. The most common causes include long-term constipation, severe diarrhea, stress, hemorrhoids, nerve or muscle damage, and overuse of laxatives.

3. Diarrhea

Diarrhea is frequent, loose, or watery stools. It is sometimes the result of allergies or sensitivity to spicy foods or dairy products, contaminated water or food, a change in activity level, or viral, bacterial, and parasitic infections.

Diarrhea can also be the signal of another problem. If it becomes frequent or continual, see your doctor. In some cases, your doctor may recommend that you see a doctor who specializes in treating bowel problems (gastroenterologist).

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