The Condition They Forgot to Explain
You were diagnosed with 47,XXY. Maybe at birth, maybe last year.
You were probably told about testosterone. Maybe fertility.
You probably weren't told the rest.
What They Didn't Tell You
XXY isn't just a hormone condition. It's a multi-system difference that affects:
- Your blood – 6x higher clotting risk, 12x if you're under 30
- Your immune system – 3-19x higher risk of autoimmune diseases
- Your metabolism – 4.4x higher metabolic syndrome prevalence
- Your bones – 25-48% have low bone density, often unrelated to testosterone
- Your brain – 6x higher ADHD prevalence, executive function differences
- Your mental health – elevated anxiety and depression that testosterone doesn't fix
Standard care monitors your testosterone. Your actual risk profile spans seven domains.
That gap is why this site exists.
Find Your Situation
Something's not right:
Understand the Full Picture
The research exists. It's just not reaching you.
Each page: what the research shows, what standard care misses, what's still unknown.
Take Action
Don't wait to be offered. Ask.
The Core Message
TRT is necessary. It's not sufficient.
Testosterone addresses one system. You have a multi-system condition. The extra X chromosome affects your immune function, clotting, metabolism, and cognition through pathways that testosterone doesn't touch.
If you've optimized your hormones and still don't feel right, it's not in your head. It's in the research that never reached your doctor.
Who Made This
This site was built by an XXY adult who got tired of learning about his own risks from research papers instead of his medical team.
Every claim is cited. Every gap is acknowledged. This is what the evidence says – no more, no less.
What This Site Is Not
- Not medical advice – this is medical information, sourced and cited
- Not a substitute for care – you need providers, just better-informed ones
- Not a gender politics site – we don't engage with that discourse
- Not selling anything – no products, no supplements, no programs
We're a medical resource for adults with 47,XXY.
That's it.