“The controversy in this case is twofold. For one, Grudzinkas says that, if such athletes are not banned from future competition, it could open up athletes to abuse. Moreover, the spirit of fair play in single-gender competitions is also being called into question, as women with elevated levels of testosterone and other male hormones can grow more muscle mass than other women typically can.”

Read the story: http://nesn.com/2013/06/report-transgender-olympians-were-castrated-to-compete-in-london/