The causal relationship between serum metabolites and the development of infertility: A Mendelian randomization analysis.

We also obtained 29 serum metabolites causally associated with female infertility, of which 15 were protective factors and 14 were risk factors.

Among all complementary mendelian randomization methods, 5 serum metabolites showed a strong causal association with female infertility.

Of these, 1 was identified as a risk factor and 2 as protective factors.

29 metabolites were causally associated with female infertility.