Sterility in Males and Females
It´s a common side effect of steroids to cause temporary sterility in both males as well as females. In fact, anabolic steroids are so proficient at this that they have actually been studied and approved by the World Health Organization as a male contraceptive possibility. Steroids do this by disrupting the various hormones in women which potentiate the ability to have regular menstrual cycles. In men, steroids lower Follicle Stimulating Hormone to the point where normal production of sperm is not possible. This isn´t to say that nobody on a cycle has every conceived; quite the opposite, actually. There' ve been legions of "happy accidents" reported to me by athletes who were on cycles and thought they couldn´t possibly conceive.
Sterility caused by steroids is temporary, of course, and generally reversible by treatment with Selective Estrogen Receptor Modulators such as Nolvadex or Clomid , and/or Human Chorionic Gonadotropin.
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