Editing Infertility: Epidemiology and Etiology (section)

== Risk Factors for Infertility ==

* '''<span style="color:#ff0000">Age of the female partner is the single most important factor when predicting the chances of conception for a couple.</span>'''
** '''Female fecundity declines precipitously after age 35'''
*** Fertility decreases by almost 50% in women in their late 30’s compared to women in their 20’s.
*** '''In women under 35 years of age, infertility is considered present after 12 months of attempting to conceive. This duration is shortened in women over the age of 35 years to 6 months.'''
* '''<span style="color:#ff0000">Male factors</span>[https://pubmed.ncbi.nlm.nih.gov/1757519/]'''
** '''<span style="color:#ff0000">Solely responsible in ≈20% of all infertile couples</span>'''
** '''<span style="color:#ff0000">Contributes to ≈30-40% of all infertile couples</span>'''
** '''≈'''30% female factor solely responsible, '''≈'''10% unexplained