Answer:
Caster Semenya is a Female DSD Athlete.
DSD Athlete means athletes with Differences in Sexual Development. Put in simple terms, some men are born with differences in their sexual development which almost puts them in the same class as women. This is also true for women.
In Caster Semenya's case, due to abnormal testosterone, she looks and competes like with some of the advantages of a healthy male.
This has put her in spotlight which is not necessarily positive.
Some of the consequences of these kinds of negative media exposure are:
Cheers!