Are there male brains and female brains?

1. Brain size is about body size, not sex.
When researchers measure total grey matter, white matter, and the fluid that cushions the brain, they find that the differences disappear once you account for skull size. "Those differences that people thought they’d found in the past have been found to correlate more strongly with skull size than with genitals... unless you think all small men have female brains and all big women have the opposite." – transthrowawayadidity source [citation:8bcfc887-1833-MTF]

2. The "mosaic" study shows every brain is a mix of "male" and "female" features.
A large neuro-imaging project found that most brains are a patchwork of characteristics, not a neat male or female type. "Human brains are a mosaic of male and female features, challenging the idea of strictly male or female brains." – Pleasant_Planter source [citation:3c9b524f-b096-414e-87b2-e9b6d8f6796b]

3. Neuroplasticity means brains change with use, not sex.
The brain areas you use grow; the ones you don’t shrink. Because boys and girls are encouraged to do different activities, the patterns you see in adults reflect habits, not destiny. "Neuroplasticity means that people’s brain shapes change massively depending on how they’re used... if you’re blinded and learn Braille, the part of your brain that processes touch grows." – transthrowawayadvice source [citation:8bcfc887-1833-4ca8-a0e0-92cb9b6de790]

4. The "male/female brain" claim relies on stereotypes.
When people try to define a "male brain," they usually list traits like being good at engineering; a "female brain" is said to be more nurturing. "Nobody can define what a 'male brain' or 'female brain' is like... not without resorting to stereotypes. Do you have a woman’s brain because you’re more empathetic? That’s so sexist when you think about it." – novaskyd source [citation:033a1003-29d3-4b2e-9a0e-a9645104ab1a]

5. Major science outlets now report "no such thing as a male or female brain."
Detransitioners point to cover stories in New Scientist, Smithsonian Magazine, and a 2015 PNAS paper that conclude brains cannot be sorted into two distinct sex categories. "There is not currently good evidence for sexed/gendered brains." – BogoGodoogoo source [citation:02e57669-4bf7-45f5-8562-4b476ba2cd06]

Conclusion
The evidence is clear: brains are not pink or blue. They are unique, adaptable, and shaped by experience, not by sex. Letting go of the "male brain/female brain" myth frees everyone to be themselves without the pressure of stereotypes or medical fixes. Your personality, talents, and feelings are already valid exactly as they are.