1 in 5000 to 10,000 people have HHT worldwide How much do you know about HHT? Learn more here Discover HHT New to HHT? Dr. Marie Faughnan, will answer all your questions director of the Toronto HHT Clinic, in this informative video. Show Your Support Meet the Team Find an HHT Centre Looking for an HHT centre near you? There are numerous HHT centres across Canada directed by HHT specialists and expert staff that know your condition. Meet the team that represents the Canadian HHT community. We work effortlessly to raise funds for HHT research and healthcare across Canada. Support the HHT community by donating today. Every donation helps propel this organization forward. The HHT community is small, but STRONG.