Due to the high rise in the rate of male infertility, there’s been a wave of interest in the source of the problem.  And some researchers are taking a unique approach, turning their sights on testicular development in utero.

A growing number of scientists are convinced that a male’s infertility could partially (or entirely) be determined based on what’s occurring during his fetal development stages.  For instance, if his mother is repeatedly exposed to smoke (even secondhand smoke), excessive pollution, toxins (like certain plastics) and other substances, some say his chances of having a child of his own will decrease.

Though studies haven’t conclusively “yea-ed” or “nay-ed” this theory, it’s definitely one worth pursuing.  It also echoes the sentiment that all pregnant women should be careful about the environments to which they are exposed, lest their environment lead to future concerns for their children.