Here is a complete explanation of what Klinefelter is, from the causes, signs or symptoms, to how to treat it.

Klinefelter syndrome is a genetic condition that affects only males. Here's what you should know about the causes, symptoms, ...

A genetic evaluation demonstrated Klinefelter syndrome 47, XXY karyotype with concurrent duplication of 3p21.31 by microarray analysis. Maternal genetic analysis demonstrated the same 3p21.31 ...

In 1968, during building work, the grave of a 1000-year-old non-binary warrior was found in Vesitorninmäki in Huttula, ...

About 15% of men with nonobstructive azoospermia have Klinefelter syndrome. The testes of men with the nonmosaic (47,XXY) form of this condition show only rare, focal areas of spermatogenesis ...

The patient was a 7-year-old white boy who presented with a long history of a mixed receptive-expressive language disorder, fine motor impairment, attention deficit hyperactivity disorder (ADHD ...