SAN FRANCISCO - Facebook on Thursday freed members from the bonds of being either male or female, letting people opt for custom genders such as transsexual or "intersex" at the social network.
Along with adding scores of "custom gender" options on profile pages, Facebook is letting members select which pronouns they wish used when referring to them in posts or messages.
Facebook users could opt to be refered to as "he/him" or "she/her," or by a neutral "they/their" choice.
"While to many this change may not mean much, for those it affects it means a great deal," Facebook said in a post at its Diversity page that included a picture of a rainbow flag on display on the company's campus in the Silicon Valley city of Menlo Park.
Facebook said it worked with lesbian, gay, bisexual and transgender activist groups to create a thorough list of gender options, which can be found in an "other" category on profile About pages.
Custom genders are only available to those who use Facebook in US English but the company planned to expand the range in the future.
Feedback in a forum at Facebook's Diversity page was mostly positive, with some suggesting a need for even more description options and others insisting that biology limits the choices to male or female.
Facebook's move will make "great strides" in supporting young people whose sexual identities don't conform to traditional societal norms, according to US-based gay advocacy group Human Rights Campaign Foundation.
"Over the past few years, a person's Facebook profile truly has become their online identity, and now Facebook has taken a milestone step to allow countless people to more honestly and accurately represent themselves," said HRC president Chad Griffin.
A survey of 10,000 lesbian, gay, bi-sexual or transgender youth published on Thursday by HRC revealed that nearly 10 percent of them put themselves in a "gender-expansive" group that could benefit from Facebook's move.
Two thirds of the surveyed people in that group wrote in genders such as queer, gender-fluid, and "non-binary," which means they feel they are neither male nor female or some combination of both.
The survey also indicated that "gender-expansive" youth were less likely to say they were happy, fit into their communities, or had an adult at home they could turn to.
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