http://www.endo-society.org/pubaffai/factshee/cah.htm Also check out this web site. It does say that a carrier can have a mild form of an adrenal problem. And I also read this is other literature from Dr. New's office (Cornell University). So since I am a carrier and my husband, we have been tested for Addison's. And had our other children genetic tested to see if they are carriers. The only lab that can do the genetic testing is Cornell University. We had the blood taken here (Washington, DC)and then the sample was sent to Cornell. There is another lab in Texas but these are the only two DNA labs in the United States that are experts in this CAH genetic test. If you want more information - email me or call me. preston@kreative.net (email me or my phone number).