Objective: Although several pathophysiological mechanisms are defined in the etiology of habitual abortion, still causes half of the cases haven’t been clarified yet. It has been reported that folate and vitamin B12 are effective in early pregnancy complications. In our study, we aimed to reveal the relationship between habitual abortion with folate and vitamin B12 levels.Materials and Methods: We included our study 124 pregnant having habitual abortion history and 242 pregnants without this, a total of 366 patients. Maternal and gestational age, height, weight, body mass index (BMI), gravidity, parity, abortion, and living children count and vitamin B12 and folate levels of these pregnants were evaluated retrospectively.Results: The ages, gravidity, and abortion counts of the study group were significantly higher than the control group (p0.05) between groups, the BMI measurements, living children count, and of the study group were significantly lower than the control group (p
