<<Disclaimer: Verify this information before applying it to your situation.>> There are many ways in which a missed period can signify problems. In this case, a recent posting on this thread has identified one such problem. Dr. Vincenti cited a report in which 0.92% of a group with non-Hodgkin's Lymphoma tested positive for celiac disease (1). Someone missed a period and Medscape is now reporting the rate of celiac disease among these cancer patients at 92% (2). That is quite a rise from less than one percent figure reported in the original abstract ( a figure that I found surprisingly low when I read it, but have not yet found the time to retrieve and read the original article). 1. Catassi C, Fabiani E, Corrao G, et al, and The Italian Working Group on Coeliac Disease and Non-Hodgkin's-Lymphoma. Risk of non-Hodgkin lymphoma in celiac disease. JAMA. 2002;287:1413-1419. 2. http://www.medscape.com/viewarticle/436251 best wishes, Ron Hoggan Co-author of Dangerous Grains