SOVEREIGN, ISM / SCIENCE PHOTO LIBRARY SOVEREIGN, ISM / SCIENCE PHOTO LIBRARY
Irritable bowel syndrome (IBS), barium enema X- ray. IBS, or spastic colon, is a condition in which the usual rhythmic contraction of muscles in the colon wall is disrupted. This causes abdominal pain and, as the intestinal muscles move food through the colon, changes in bowel habits, either constipation, diarrhoea or both. In this patient, the muscles in the colon wall have gone into spasm, which is seen by the marked narrowing of the colon across top and down right. The causes of the condition are unknown, but it has been linked to diet, stress and changes in the bacterial population of the gut.
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