Abstract: Objective To investigate the relationship between serum vitamin D levels in pregnant women and early pregnancy-related diseases, including bacterial vaginosis and spontaneous abortion.Methods A total of 60 women with early spontaneous abortion who were admitted to Baoding NO.1 Central Hospital were selected as the early spontaneous abortion group.A total of 50 early pregnancy women with bacterial vaginosis were enrolled as the bacterial vaginosis group.And 80 cases of healthy early pregnant women during the same period were collected as normal control group.Peripheral blood samples of all subjects were collected to detect the content of 25-hydroxyvitamin D in serum, and the deficiency rate of vitamin D in each group was analyzed and compared.Results The levels of vitamin D in the early spontaneous abortion group and the bacterial vaginosis group was significantly higher than those in the control group, and the differences were statistically significant(P<0.05).The vitamin D deficiency rate of early spontaneous abortion group(43.33%)was significantly higher than that of normal control group(22.50%), with statistical significance among the two groups(χ2=6.905, P=0.009).The vitamin D deficiency rate in the bacterial vaginosis group(42.00%)was significantly higher than that in the normal control group(22.50%), and the difference between groups was statistically significant(χ2=5.571, P=0.018).Conclusion Pregnant women with serum vitamin D deficiency may be more prone to early spontaneous abortion, and vitamin D deficiency in early pregnancy may also increase the risk of bacterial vaginosis infection.

Key words: pregnantwoman, vitamin D deficiency, spontaneous abortion, early pregnancy, bacterialvaginosis

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