Irritable bowel syndrome (IBS) and inflammatory bowel disease (IBD): how common are they really?

  • Around 1 in 5 Australians (4.5 million) have the symptoms of IBS at some time during their life
  • Approximately 75,000 Australians have IBD
  • Around 28,000 have Crohn’s disease and 33,000 have ulcerative colitis