Klinefelter syndrome: Introduction
A rare chromosomal genetic syndrome where the person
has XXY chromosomes instead of XY or XX.
The person is usually male because of the Y chromosome,
but has lower levels of testosterone
and may have some female-like features
(because there are two X chromosomes).
Sterility is a possible complication.
The rarer subtype XXXY syndrome may lead to retardation. ...more »
Symptoms of Klinefelter syndrome
See full list of 30
symptoms of Klinefelter syndrome
Treatments for Klinefelter syndrome
Read more about treatments for Klinefelter syndrome
Home Diagnostic Testing
Home medical testing related to Klinefelter syndrome:
Wrongly Diagnosed with Klinefelter syndrome?
Klinefelter syndrome: Related Patient Stories
Types of Klinefelter syndrome
Read more about Types of Klinefelter syndrome
Diagnostic Tests for Klinefelter syndrome
See full list of 7
diagnostic tests for Klinefelter syndrome
Klinefelter syndrome: Complications
Review possible medical complications related to Klinefelter syndrome:
Causes of Klinefelter syndrome
Read more about causes of Klinefelter syndrome.
Disease Topics Related To Klinefelter syndrome
Research the causes of these diseases that are similar to, or related to, Klinefelter syndrome:
Klinefelter syndrome: Undiagnosed Conditions
Commonly undiagnosed diseases in related medical categories:
Misdiagnosis and Klinefelter syndrome
Misdiagnosed weight-related causes of infertility: A woman's weight status
can affect her level of fertility.
Although obesity or overweight can in...read more »
Read more about Misdiagnosis and Klinefelter syndrome
Klinefelter syndrome: Research Doctors & Specialists
Research related physicians and medical specialists:
- Infertility Specialists:
- Pregnancy & Fertility Health Specialists:
- Womens Health Specialists:
- more specialists...»
Other doctor, physician and specialist research services:
Hospitals & Clinics: Klinefelter syndrome
Research quality ratings and patient safety measures
for medical facilities in specialties related to Klinefelter syndrome:
Hospital & Clinic quality ratings »
Choosing the Best Hospital:
More general information, not necessarily in relation to Klinefelter syndrome,
on hospital performance and surgical care quality:
Klinefelter syndrome: Rare Types
Rare types of diseases and disorders in related medical categories:
Evidence Based Medicine Research for Klinefelter syndrome
Medical research articles related to Klinefelter syndrome include:
Click here to find more evidence-based articles on the TRIP Database
Klinefelter syndrome: Animations
More Klinefelter syndrome animations & videos
Research about Klinefelter syndrome
Visit our research pages for current research about Klinefelter syndrome treatments.
Clinical Trials for Klinefelter syndrome
The US based website ClinicalTrials.gov lists information on both federally
and privately supported clinical trials using human volunteers.
Some of the clinical trials listed on ClinicalTrials.gov for Klinefelter syndrome include:
Read more about Clinical Trials for Klinefelter syndrome
Statistics for Klinefelter syndrome
Klinefelter syndrome: Broader Related Topics
Types of Klinefelter syndrome
Klinefelter syndrome Message Boards
Related forums and medical stories:
User Interactive Forums
Read about other experiences, ask a question about Klinefelter syndrome, or answer someone else's question, on our message boards:
Definitions of Klinefelter syndrome:
A common sex chromosomal anomaly in males characterized mainly by small testes with tubular hyalinization, azospermia with infertility, slight breast enlargement, elevated urinary gonadotropins, and decreased urinary 17-ketosteroids. Dull mentality has been noted. The affected individuals appear normal after birth, except for small testes. Most characteristic features become evident at adolescence as hypogonadism, gynecomastia, incomplete virilization with variable eunuchoidism, and dull mentality. Without testosterone therapy, most adult patients may become obese. Occasional abnormalities may include cryptorchidism, hypospadias, ataxia, scoliosis during adolescence, and diabetes mellitus in adulthood.
- (Source - Diseases Database)
Syndrome in males that is characterized by small testes and long legs and enlarged breasts and reduced sperm production and mental retardation; a genetic defect in which an extra X chromosome (XXY) is present in the male
- (Source - WordNet 2.1)
Ophanet, a consortium of European partners,
currently defines a condition rare when it affects 1 person per 2,000.
They list Klinefelter syndrome as a "rare disease".
Source - Orphanet
Contents for Klinefelter syndrome:
User Surveys and Discussion Forums