Some governing bodies for sports allow trans women to compete in female-only sports and some do not.Opponents believe that growing up with a male body (usually larger and stronger) gives trans women unfair advantages.Trans women have set women's records for sports that some biological women believe should not count.High school athletes who have routinely lost to trans athletes have sued to have trans competitors excluded as unfair competition for scholarships designated for women. The American Civil Liberties Union sides with the trans athletes.