Gastroenterology and hepatology > Crohn's disease – complications and severity

  • Thickening of the bowel wall in Crohn's disease may cause an obstruction in the gut. In addition, deep ulcers may form abnormal connections between loops of intestine (fistulas).
  • Abscesses form when the inflammation of Crohn's disease extends deep into the bowel wall and and an infection develops. They can also form behind intestinal blockages or in and around fistulas.
  • The symptoms of Crohn's disease vary according to the part of the digestive tract that is affected, but usually include colicky abdominal pain, diarrhoea and weight loss.
  • Crohn's disease may also cause arthritis of the back and large joints, inflamed eyes, skin rashes and inflammation of the biliary tract and liver.
  • The pattern of disease activity and severity varies between patients.

    For more information on Crohn's disease, go to:
    Crohn's disease – what is it?
    Crohn's disease – tests and treatments