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更新日期：2018-08-10
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The causes of diverticulitis are uncertain. Risk factors may include obesity, lack of exercise, smoking, a family history of the disease, and nonsteroidal anti-inflammatory drugs (NSAIDs). The role of a low fiber diet as a risk factor is unclear. Having pouches in the large intestine that are not inflamed is known as diverticulosis.
Inflammation occurs in between 10% and 25% at some point in time and is due to a bacterial infection. Diagnosis is typically by CT scan, though blood tests, colonoscopy, or a lower gastrointestinal series may also be supportive. The differential diagnosis includes irritable bowel syndrome.
Diverticulitis, specifically colonic diverticulitis, is a gastrointestinal disease characterized by inflammation of abnormal pouches - diverticuli - which can develop in the wall of the large intestine. Symptoms typically include lower abdominal pain of a sudden onset. The onset of symptoms, however, may also occur over a few days.
In North America and Europe the abdominal pain is usually on the left lower side, while in Asia it is usually on the right. There may also be nausea; and diarrhea or constipation. Fever or blood in the stool suggests a complication. Repeated attacks may occur.