Causes of transsexuality Docter and others, but opposed by Charles Allen Moser, Larry Nuttbrock, Julia Serano, and the World Professional Association for Transgender Health.<section end="factors" /> A 2008 study compared 112 male-to-female transsexuals (both androphilic and gynephilic), mostly already undergoing hormone treatment, with 258 cisgender male controls. Male-to-female transsexuals were more likely than cisgender males to have a longer version of a receptor gene (longer repetitions of the gene) for the sex hormone androgen or testosterone, which reduced its effectiveness at binding testosterone. The androgen receptor (NR3C4) is activated by the binding of testosterone or dihydrotestosterone, where it plays a critical role in
Causes of sexual violence if they report rape. These risks include being subjected to violence (including honor killings) by their families, being prosecuted for sex outside marriage, or being forced to marry their rapist. This creates a culture of impunity which allows rape to go unpunished. Sexual violence committed by men is to a large extent rooted in ideologies of male sexual entitlement. These belief systems grant women extremely few legitimate options to refuse sexual advances. Some men thus simply exclude the possibility that their sexual advances towards a woman might be rejected or that a woman has the right to make an autonomous