克隆氏病术后复发病人的非病变肠段在临床诊断前早有粘膜炎症、肠壁小肉芽肿以及粘液细胞酶活性的改变。因此,所谓复发是病灶再次活动(Recnudescence),而并非病变消失再出现(Recurrence),但惯称复发。复发部位可累及肠道的任何肠段,难有一定部位的特异性。术后复发多数发生在吻合口近侧,即便是第二三次手术后复发仍在吻合口附近。行直、结肠切除的病人复发普遍发生在接近造瘘口的回肠,但通常不累及造瘘回肠段。 The non-lesioned bowel segments of patients with relapsed Crohn’s disease had mucosal inflammation, intestinal granulomatous, and mucinous cell enzyme activity before clinical diagnosis. Therefore, the so-called recurrence is recurrence of the lesion, and not the recurrence of the lesion, but it is often referred to as recurrence. The site of recurrence can involve any intestinal segment of the intestine, and it is difficult to have specificity in a certain part. The majority of postoperative recurrences occurred proximal to the anastomotic stoma, and even after the second or third surgery recurrence was still near the anastomotic stoma. The recurrence of patients undergoing straight and colon resection generally occurs near the ileum of the fistula, but it is usually not involved in the ileo- peritoneum.