Myths vs facts: HLA-DQ2 and Fruchtbarkeit

The question of myths vs facts regarding HLA-DQ2 and fertility is not addressed in the provided context. HLA-DQ2 is a genetic marker strongly associated with celiac disease. There is evidence that untreated celiac disease can impair fertility (e.g., through nutrient malabsorption or inflammation), but the mere presence of HLA-DQ2 without a celiac diagnosis has no proven direct effect on fertility. Many individuals with HLA-DQ2 have neither celiac disease nor fertility issues. Therefore, claiming that HLA-DQ2 alone affects fertility is more myth than fact. Genetic testing for HLA-DQ2 can be useful in celiac disease workup, but not as a fertility predictor. Without clinical confirmation of celiac disease or other relevant factors, one should not draw premature conclusions. The evidence is rated as unclear because the provided context lacks specific studies or data on this topic.