<<Disclaimer: Verify this information before applying it to your situation.>> I am aware that undiagnosed celiac disease can cause infertility and other reproductive problems. Mostly this would be caused by the malnutrition. But how would an OB/GYN know when to suspect that this person's infertility presentation is one likely to be caused by celiac. For example, in the alt.infertility newsgroup, a woman has tested with "high levels of prolactin" for which she was prescribed a med. Is this a symptom where one could suspect CD? Which ones are? Don Wiss.