Klinefelter's syndrome (patient information)

For the WikiDoc page for this topic, click here

WikiDoc Resources for Klinefelter's syndrome (patient information)
Articles
Most recent articles on Klinefelter's syndrome (patient information) Most cited articles on Klinefelter's syndrome (patient information) Review articles on Klinefelter's syndrome (patient information) Articles on Klinefelter's syndrome (patient information) in N Eng J Med, Lancet, BMJ
Media
Powerpoint slides on Klinefelter's syndrome (patient information) Images of Klinefelter's syndrome (patient information) Photos of Klinefelter's syndrome (patient information) Podcasts & MP3s on Klinefelter's syndrome (patient information) Videos on Klinefelter's syndrome (patient information)
Evidence Based Medicine
Cochrane Collaboration on Klinefelter's syndrome (patient information) Bandolier on Klinefelter's syndrome (patient information) TRIP on Klinefelter's syndrome (patient information)
Clinical Trials
Ongoing Trials on Klinefelter's syndrome (patient information) at Clinical Trials.gov Trial results on Klinefelter's syndrome (patient information) Clinical Trials on Klinefelter's syndrome (patient information) at Google
Guidelines / Policies / Govt
US National Guidelines Clearinghouse on Klinefelter's syndrome (patient information) NICE Guidance on Klinefelter's syndrome (patient information) NHS PRODIGY Guidance FDA on Klinefelter's syndrome (patient information) CDC on Klinefelter's syndrome (patient information)
Books
Books on Klinefelter's syndrome (patient information)
News
Klinefelter's syndrome (patient information) in the news Be alerted to news on Klinefelter's syndrome (patient information) News trends on Klinefelter's syndrome (patient information)
Commentary
Blogs on Klinefelter's syndrome (patient information)
Definitions
Definitions of Klinefelter's syndrome (patient information)
Patient Resources / Community
Patient resources on Klinefelter's syndrome (patient information) Discussion groups on Klinefelter's syndrome (patient information) Patient Handouts on Klinefelter's syndrome (patient information) Directions to Hospitals Treating Klinefelter's syndrome (patient information) Risk calculators and risk factors for Klinefelter's syndrome (patient information)
Healthcare Provider Resources
Symptoms of Klinefelter's syndrome (patient information) Causes & Risk Factors for Klinefelter's syndrome (patient information) Diagnostic studies for Klinefelter's syndrome (patient information) Treatment of Klinefelter's syndrome (patient information)
Continuing Medical Education (CME)
CME Programs on Klinefelter's syndrome (patient information)
International
Klinefelter's syndrome (patient information) en Espanol Klinefelter's syndrome (patient information) en Francais
Business
Klinefelter's syndrome (patient information) in the Marketplace Patents on Klinefelter's syndrome (patient information)
Experimental / Informatics
List of terms related to Klinefelter's syndrome (patient information)

Editor-in-Chief: Alexandra M. Palmer

Please Join in Editing This Page and Apply to be an Editor-In-Chief for this topic: There can be one or more than one Editor-In-Chief. You may also apply to be an Associate Editor-In-Chief of one of the subtopics below. Please mail us [1] to indicate your interest in serving either as an Editor-In-Chief of the entire topic or as an Associate Editor-In-Chief for a subtopic. Please be sure to attach your CV and or biographical sketch.

What is Klinefelter's syndrome?

Klinefelter's syndrome is the presence of an extra X chromosome in a male.

What causes Klinefelter's syndrome?

Humans have 46 chromosomes. Chromosomes contain all of your genes and DNA, the building blocks of the body. The two sex chromosomes determine if you become a boy or a girl. Females normally have two of the same sex chromosomes, written as XX. Males normally have an X and a Y chromosome (written as XY).

Klinefelter's syndrome is one of a group of sex chromosome problems. It results in males who have at least one extra X chromosome. Usually, this occurs due to one extra X (written as XXY).

Klinefelter's syndrome is found in about 1 out of every 500 - 1,000 newborn males. Women who have pregnancies after age 35 are slightly more likely to have a boy with this syndrome than younger women.

Where to find medical care for Klinefelter's syndrome

Directions to Hospitals Treating Klinefelter's syndrome