The signs and symptoms of IBS vary. The most common include:
- Abdominal pain, cramping or bloating that is typically relieved or partially relieved by passing a bowel movement
- Excess gas
- Diarrhea or constipation — sometimes alternating bouts of diarrhea and constipation
- Mucus in the stool
Most people with IBS experience times when the signs and symptoms are worse and times when they improve or even disappear completely.
When to see a doctor
See your doctor if you have a persistent change in bowel habits or other signs or symptoms of IBS. They may indicate a more serious condition, such as colon cancer. More-serious signs and symptoms include:
- Weight loss
- Diarrhea at night
- Rectal bleeding
- Iron deficiency anemia
- Unexplained vomiting
- Difficulty swallowing
- Persistent pain that isn’t relieved by passing gas or a bowel movement
Mary Read through these three pamphlets cover to cover:
Causes Of I.B.S.
The precise cause of IBS isn’t known. Factors that appear to play a role include:
- Muscle contractions in the intestine. The walls of the intestines are lined with layers of muscle that contract as they move food through your digestive tract. Contractions that are stronger and last longer than normal can cause gas, bloating and diarrhea. Weak intestinal contractions can slow food passage and lead to hard, dry stools.
- Nervous system. Abnormalities in the nerves in your digestive system may cause you to experience greater than normal discomfort when your abdomen stretches from gas or stool. Poorly coordinated signals between the brain and the intestines can cause your body to overreact to changes that normally occur in the digestive process, resulting in pain, diarrhea or constipation.
- Inflammation in the intestines. Some people with IBS have an increased number of immune-system cells in their intestines. This immune-system response is associated with pain and diarrhea.
- Severe infection. IBS can develop after a severe bout of diarrhea (gastroenteritis) caused by bacteria or a virus. IBS might also be associated with a surplus of bacteria in the intestines (bacterial overgrowth).
- Changes in bacteria in the gut (microflora). Microflora are the “good” bacteria that reside in the intestines and play a key role in health. Research indicates that micro-flora in people with IBS might differ from micro-flora in healthy people.
Triggers Of I.B.S.
Symptoms of IBS can be triggered by:
- Food. The role of food allergy or intolerance in IBS isn’t fully understood. A true food allergy rarely causes IBS. But many people have worse IBS symptoms when they eat or drink certain foods or beverages, including wheat, dairy products, citrus fruits, beans, cabbage, milk and carbonated drinks.
- Stress. Most people with IBS experience worse or more frequent signs and symptoms during periods of increased stress. But while stress may aggravate symptoms, it doesn’t cause them.
- Hormones. Women are twice as likely to have IBS, which might indicate that hormonal changes play a role. Many women find that signs and symptoms are worse during or around their menstrual periods.
Many people have occasional signs and symptoms of IBS. But you’re more likely to have the syndrome if you:
- Are young. IBS occurs more frequently in people under age 50.
- Are female. In the United States, IBS is more common among women. Estrogen therapy before or after menopause also is a risk factor for IBS.
- Have a family history of IBS. Genes may play a role, as may shared factors in a family’s environment or a combination of genes and environment.
- Have a mental health problem. Anxiety, depression and other mental health issues are associated with IBS. A history of sexual, physical or emotional abuse also might be a risk factor.
Chronic constipation or diarrhea can cause hemorrhoids.
In addition, IBS is associated with:
- Poor quality of life. Many people with moderate to severe IBS report poor quality of life. Research indicates that people with IBS miss three times as many days from work as do those without bowel symptoms.
- Mood disorders. Experiencing the signs and symptoms of IBS can lead to depression or anxiety. Depression and anxiety also can make IBS worse.
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