• An incongruence, present for six months or longer, between the child's experienced/expressed gender and the gender they were assigned at birth•A strong desire to be of the other gender/Insist they are another gender• In boys (assigned gender), a strong preference for wearing or simulating female attire, and/or a resistance to wearing traditional masculine clothing• In girls (assigned gender), a strong preference for wearing typical masculine clothing, and/or a resistance to wearing traditional feminine clothing• A strong preference for cross-gender roles in make-believe or fantasy play•A strong dislike of one's sexual anatomy