Testosterone is predominantly recognized as a male hormone but it is also produced in the ovaries and female adrenal glands in small quantities.

There is now increased chatter about testosterone levels in women due to media coverage of track star Caster Semenya, who was barred from competing due to her naturally high levels of testosterone.

Semenya, a double Olympic 800m champion, was discriminated against under rules requiring her to reduce her testosterone levels, mandating medication to reduce her testosterone levels, by the World Athletic Track and Field governing body.

A “News24” report recently stated that Semenya had won a lengthy court case over World Athletics’ requirement for hormone treatment for the athlete to compete.

The measures and procedures enacted in 2018 not only affected Semenya but all women athletes, who are classed as having “differences in sexual development (DSD)”.

According to a 2017 study on women and testosterone by Ruth Clapauch, testosterone directly influences sexuality, mood, body composition, skin and hair, meibomian glands in the eyes as well as acts on the hematologic and immune system.
 
Bone and cardiovascular system effects are at least in part mediated through aromatization to estrogens. In women, elevated levels of testosterone can lead to various health concerns and hormonal imbalances.