Thank you for visiting! The purpose of this site is to educate those affected by Hirschsprung disease-whether you, a family member, or someone you know has the disease. The site provides information on what we know about the genetic basis of Hirschsprung disease, and describes the genetic studies taking place in our laboratory. Also included are links for additional resources, support groups, and helpful websites. We hope you find this site both helpful and informative. **Please note: we are not able to assist you with clinical or diagnostic issues that you or your family member may be experiencing, nor are we able to make physician referrals.** Please send comments or suggestions to hirschsprung@igm.jhmi.edu | 
