The idea that celiac disease is primarily limited to those of European decent is a dated notion. We now know better. In the last three or four decades our knowledge of celiac disease and our understanding of the symptomology connected with it has broadened greatly. We now have better diagnostic tools and there is a greater awareness of gluten-related disorders in the medical community (and in the public) as a whole. It may not be true that celiac disease is rare in the Asian population if you include southwest Asian countries like India and Pakistan where it is rampant. I suspect that in time, the same will hold true for east Asia as the medical community there develops greater awareness of symptoms and begins to test for it more commonly. One thing that may have thrown a curve into all this is the possibility that race may skew the type of immune system response with the onset of celiac disease. For instance, there is some research that has shown people of black African decent with celiac disease are much less likely to show positive test results for the TTG-IGA antibody test than are people of European decent. Since the TTG-IGA is the most common antibody test  used when diagnosing celiac disease, a lot of blacks with celiac disease were being missed.  I am including this article to help you get off on the right foot in eating gluten free:   

But why are you asking about In Vitro Fertilization treatment safety on a forum that has nothing to do with that?

Thank you! That makes sense. The Japanese GI and the pathologist who reviewed my biopsy samples probably never met a Celiac patient before. The GI just told me to try my best at gluten free diet...

No! She is not going on gluten-related problems. I'm here just to know about IVF treatment because she wants to ensure before treatment If it's safe.

Welcome to the forum, @Emma2322! Can you give us some context here? This online community exists to support those with gluten-related disorders such as celiac disease and gluten sensitivity. Does your cousin suffer from a gluten-related disorder?