After adjusting for age, BMI, day 3 FSH, antral follicle count, AMH, serum Hcy level, total gonadotropin dose used, duration of stimulation, duration of infertility, endometrial thickness on hCG day, E2 level on hCG, TSH, anti‐Tg, TpoA, type of infertility, type of fertilization, type of ovulation induction, and infertility factors, the total number of oocytes retrieved was included in the multivariate linear regression model, and the multivariate linear regression analysis revealed that serum Hcy level had no correlations with any IVF/ICSI outcomes (Table 4). This evidence concerns the gene BRD2 and Infertility.