Some medical stories begin with something small, like a strange mark or odd reaction. And then they develop to make doctors ...

Klinefelter syndrome is a genetic disease that causes people assigned male at birth to be born with an extra copy of the X chromosome in their cells. People with Klinefelter syndrome may not have any ...

Monosomy X, or Turner syndrome, is a genetic condition affecting people assigned female at birth. Those with it lack part or all of one X chromosome. But this doesn’t mean you can’t lead a full life ...

Lindsay Curtis is a health & medical writer in South Florida. She worked as a communications professional for health nonprofits and the University of Toronto’s Faculty of Medicine and Faculty of ...