Linked from
The 14 pages that link to Crohn's disease, each with the reason it gives.
Small intestineRelated: Small-intestinal inflammation can cause narrowing, pain, and malabsorption.
Tumor necrosis factorRelated: TNF inhibitors are used to control inflammation in many cases.
FistulaRelated: Transmural inflammation can create connections between bowel and other tissues.
IleumRelated: Ileal inflammation is a common presentation and can impair absorption.