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Irritable Bowel Syndrome (IBS)
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- Symptoms
- What Happens
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An expert panel has outlined a list of symptoms common in irritable bowel syndrome (IBS). Doctors often use this list of symptoms, known as the Rome III criteria, to distinguish IBS from other intestinal problems. But people who don't have all of these symptoms may still have IBS.
You meet the Rome III criteria for IBS if your symptoms began at least 6 months ago, you have had abdominal pain or discomfort at least 3 days each month in the last 3 months, and at least two of the following statements are true:1
- The pain is relieved by having a bowel movement.
- The pain is linked to a change in how often you have a bowel movement.
- The pain is linked to a change in the appearance or consistency of your stool.
The presence of any of the following symptoms supports a diagnosis of IBS.
Bowel movement patterns
When you have IBS, your pattern of bowel movements may be different over time. Two or more of the following may happen:
- Bowel movements may occur either more often (diarrhea) or less often (constipation) than usual, such as having more than 3 bowel movements a day or less than 3 a week.
- Bowel movements may differ in size or consistency (may be hard and small, pencil-thin, or loose and watery).
- The way stools pass changes. You may strain, feel an urgent need to have a bowel movement, or feel that you haven't completely passed a stool.
- You may have bloating or a feeling of gas in the intestines.
Other intestinal symptoms
Some people may have lower abdominal pain with constipation that is sometimes followed by diarrhea. Other people have pain and mild constipation but no diarrhea.
Symptoms that are sometimes present include intestinal gas and passage of mucus in stools.
Nongastrointestinal symptoms
You may sometimes have other symptoms that don't affect the intestines, such as:
- Anxiety or depression.
- Fatigue.
- Headache.
- Unpleasant taste in the mouth.
- Backache.
- Sleeping problems (insomnia) not caused by symptoms of IBS.
- Sexual problems, such as pain during sex or reduced sexual desire.
- Heart palpitations (feeling like the heart skips a beat or is fluttering).
- Urinary symptoms (frequent or urgent need to urinate, trouble starting the urine stream, trouble emptying the bladder).
Symptoms often occur after a meal, during stressful times, or during menstruation.
There are many other conditions with symptoms similar to IBS.
| By: | Healthwise Staff | Last Revised: May 17, 2010 |
| Medical Review: | Kathleen Romito, MD - Family Medicine Jerome B. Simon, MD, FRCPC, FACP - Gastroenterology | |
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