The DRM WebWatcher: Klinefelter Syndrome

	The DRM WebWatcher
	Klinefelter Syndrome
	Updated 12/2005
A \| B \| C \| D \| E \| F \| G \| H \| I \| J \| K \| L \| M \| N \| O \| P \| Q \| R \| S \| T \| U \| V \| W \| XYZ \| Complete Index \| About/Hint/Link

The approximately 1 in 500 males with Klinefelter syndrome - also known as XXY males - have an extra X chromosome. For information about the effects of XXY or to find support resources, check these sites.

Klinefelter Syndrome and Associates: Information and support services from a nonprofit organization.

Klinefelter Syndrome & The XXYY Variant: A page by a parent of a child with XXYY, a very rare variant of Klinefelter syndrome.