Negagender is a neurogender in which someone's gender is defined/influenced by the negative symptoms of schizophrenia. Negative symptoms being traits psychotic people might have that suggests the absence of "normality", such as flat affect, anhedonia, etc.
Negagender was coined on or around November 12, 2014, by tumblr user cactusprincex.
The flag was created by Deviantart user Pride-Flags on June 12, 2017. The blue stripes represent taking life away from the design. The top three stripes represent subtracted or added traits, while the bottom two represent normal traits.