[Extraintestinal manifestations in chronic inflammatory bowel diseases]

60-80% of patients with inflammatory bowel diseases (IBD) develop extraintestinal manifestations. These complications are mostly the result of the underlying disease, deficiencies, or drug therapy and can significantly reduce the quality of life of patients with IBD. The most evident manifestations affect the perianal region, joints, skin, and eyes. Regular check-ups and early substitution in addition to a consistent therapy of the chronic intestinal inflammation usually lead to a significant reduction of the extraintestinal symptoms.