Eisenberg ML, et al. – The connection between semen quality and pregnancy loss in a cohort of couples attempting to conceive was studied in this research. Although a few trends were identified (e.g., DNA fragmentation), general semen parameters appeared to have little relation to risk of pregnancy loss or recurrent pregnancy loss at the population level. In any case, given that 30% of pregnancies end in miscarriage and half the fetal genome is paternal in origin, the findings await corroboration.