Gender Test

There is a South African runner whose gender is being questioned as a female. Here is a direct quote from the article, "Before the race, IAAF spokesman Nick Davies stressed this is a “medical issue, not an issue of cheating.” He said the “extremely complex” testing has begun. The process requires a physical medical evaluation and includes reports from a gynecologist, endocrinologist, psychologist, internal medicine specialist and gender expert.

WTF??? Extremely "complex" testing? Either she has one, or she doesn't.... What's so complex about that?

I don't get it....