Anaemia (a reduced level of red blood cells)
Some people with Crohn’s disease develop anaemia because of low iron levels caused by blood in stools or the intestinal inflammation itself.
The condition is slightly more common in women than men.
NHS Choices said: “There’s currently no cure for Crohn’s disease, so the aim of treatment is to stop the inflammatory process, relieve symptoms (induce and maintain remission) and avoid surgery wherever possible.
“The first treatment offered to reduce symptoms is usually steroid medication (corticosteroids). If this doesn’t help, medication to suppress the immune system (immunosuppressants) and medication to reduce inflammation may be used.
“In some cases, surgery may be needed to remove the inflamed section of intestine.”