Tibrina Hobson/Getty Images

WNBA player Layshia Clarendon underwent a double mastectomy ("top surgery") to treat distressing symptoms of gender dysphoria.

Clarendon, a New York Liberty shooting guard, is a male-identified transgender and non-binary who sought surgery to alleviate the debilitating stress and anxiety of GD.

Clarendon shared a post-surgery photo on Instagram.com, along with the caption:

"It's hard to put into words the feeling of seeing my chest for the first time free of breasts, seeing my chest the way I've always seen it, and feeling a sense of gender euphoria as opposed to gender dysphoria. Sighhhh... freedom...freedom at last."

The Diagnostic and Statistical Manual of Mental Disorders (DSM-5) defines gender dysphoria as a psychological disorder that causes significant distress or impairment related to a strong desire to be the opposite gender.

The sufferer focuses on obtaining the primary and/or secondary sex characteristics of the opposite gender. Not all transgender or gender diverse people experience dysphoria.