The National Association for Colitis and Crohn's Disease (NACC) brings together people of all ages who have Ulcerative Colitis or Crohn’s Disease, their families and the health professionals involved in their care. These two illnesses are both forms of Inflammatory Bowel Disease (IBD) and they affect about 1 in 400 people in the United Kingdom

http://nacc.org.uk/content/home.asp