Irritable bowel syndrome: clinical review Irritable bowel syndrome (IBS) is a common functional gut condition accounting for 30% of gastroenterology clinic referrals. Sign in to continue Sign In Email address Password Stay signed in Trouble signing in? Reset password: Click here Need help? Email us Register FREE Limited free articles a month Free email bulletins Register Now Register Now Take a 30-day trial Join MIMS now and pay nothing for the first 30 days Join GPOnline now and pay nothing for the first 30 days Sign Up Sign Up