Pain killers and Future Male Infertility?

A new study published online in the Journal Human Reproduction from Denmark and Finland showed a higher chance of having undescended testicles (which leads to a higher chance of male infertility) in the sons of women who took pain killers during pregnancy (see the link in my newsletter at

http://www.healthbanks.com/PatientPortal/MyPractice.aspx?UAID={A03416B1-1368-44A8-8636-06329078EA5A}&TabID={X}&ArticleID=645787 ).

I think the study is fairly weak and more data is definitely needed to find out if there is an association. That said, I always tell my patients to avoid taking any medication if they can avoid it.