Fallon Fox, the first mixed martial arts (MMA) fighter to come out transgender, has said that reaction has been mostly positive.

Questions about her gender from a reporter prompted Fox, 37, to come out transgender last week.

(Related: MMA fighter Fallon Fox comes out transgender.)

During an appearance on CNN, Fox said she transitioned in 2006 and began fighting two years later.

When asked to respond to her critics who have said it's not fair for Fox to fight women when she was born a man, Fox answered: “It's completely fair.”

“The medical community stands behind me on that, in that there's no unfair competitive advantages, which is the arguments of some who oppose my competition have said,” Fox said.

Fox said that she was not surprised by the reaction.

“It doesn't surprise me that much. I think that some people have a tendency not to pay attention to science in general, which is the way that we find out about the world around us. It's just a thing that happens to human beings. But I think for the most part, the reaction has been positive. It's just that some of society doesn't get it yet.” (The video is embedded on this page. Visit our video library for more videos.)