Inflammatory bowel disease (IBD), which affects as many as 1 million Americans, refers to two chronic diseases that cause inflammation of the intestines: Crohn's disease and ulcerative colitis.

影响着一百万多美国人的炎症性肠病，是指能引起肠部炎症的两种慢性病：克罗恩氏病和溃疡性结肠炎。

youdao

Background: Ulcerative colitis (UC) is a non-specific chronic inflammation of gut and its etiology has not been known clearly.

背景：溃疡性结肠炎(UC)是一种慢性非特异性肠道炎症性疾病，其病因尚不明确。

youdao

Ulcerative colitis (UC) is characterized by a chronic relapsing intestinal inflammation. The causes of UC are unknown.

溃疡性结肠炎是一种病因未明、反复发作的肠道慢性炎症。

youdao

The standard treatment for inflammatory bowel diseases such as Crohn's and ulcerative colitis is through steroids, which help reduce the inflammation.

BBC: Bowel disease linked to vitamin