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Irritable bowel syndrome (IBS) refers to a disorder that involves abdominal pain and cramping, as well as changes in bowel movements.
It is not the same as inflammatory bowel disease (IBD), which includes Crohn's disease and ulcerative colitis .
Spastic colon; Irritable colon; Mucous colitis; Spastic colitis
Causes, incidence, and risk factors
There are many possible causes of IBS. For example, there may be a problem with muscles in the intestine, or the intestine may be more sensitive to stretching or movement. There is no problem with the structure of the intestine.
It is not clear why patients develop IBS, but in some instances, it occurs after an intestinal infection. This is called postinfectious IBS. There may also be other triggers.
Stress can worsen IBS. The colon is connected to the brain through nerves of the autonomic nervous system. These nerves become more active during times of stress, and can cause th...
Article updated and reviewed by Christian D. Stone, M.D., Assistant Professor of Medicine, Division of Gastroenterology, Washington University in St. Louis School of Medicine on May 19, 2005. constipation , diarrhea or aor both). These symptoms are the result of abnormalities of colon function. Both hypersensitivity and abnormal motility of the colon are key features of this disease. IBS is known by various other names such as irritable colon, spastic colon, spastic bowel, and functional bowel disease. It is not accurate to use the term colitis when describing IBS. Colitis means there is inflammation in the colon but this is not the case in IBS. The colon (large intestine) is responsible for packaging and eliminating stool. As food moves through the colon it absorbs water while forming stool. Muscle contractions (squeezing motions) in the colon push the stool toward the rectum (the lower five inches of the large intestine). These contractions are controlled by nerves, hormones and by elec...
Alternative Names Backache; Low back pain; Lumbar pain; Pain - back; Acute back pain; Back pain - new; Back pain - short-term Symptoms You may feel a variety of symptoms if you've hurt your back. You may have a tingling or burning sensation, a dull achy feeling, or sharp pain. Depending on the cause, you also may have weakness in your legs or feet. Low back pain can vary widely. The pain may be mild, or it can be so severe that you are unable to move. Depending on the cause of your back pain, you may also have pain in your leg, hip, or bottom of your foot. See: Sciatica Signs and tests When you first see your doctor, you will be asked questions about your back pain, including how often it occurs and how severe it is. Your doctor will try to determine the cause of your back pain and whether it is likely to quickly get better with simple measures such as ice, mild painkillers, physical therapy, and proper exercises. Most of the time, back pain will get better using these approaches. Questions w...
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