Triple-X syndrome: Introduction
A rare chromosomal genetic syndrome with one or more extra X chromosomes,
leading to XXX (or more rarely XXXX or XXXXX),
instead of the usual XX (female) or XY (male).
These people are females as they have no Y male chromosome,
but have an additional female X chromosome.
Women can be largely unaffected,
or may suffer from problems such as infertility (some but not all),
and reduced mental acuity. ...more »
Symptoms of Triple-X syndrome
Read more about symptoms of Triple-X syndrome
Wrongly Diagnosed with Triple-X syndrome?
Triple-X syndrome: Related Patient Stories
Types of Triple-X syndrome
Read more about Types of Triple-X syndrome
Triple-X syndrome: Complications
Review possible medical complications related to Triple-X syndrome:
Causes of Triple-X syndrome
Read more about causes of Triple-X syndrome.
Disease Topics Related To Triple-X syndrome
Research the causes of these diseases that are similar to, or related to, Triple-X syndrome:
Evidence Based Medicine Research for Triple-X syndrome
Medical research articles related to Triple-X syndrome include:
Click here to find more evidence-based articles on the TRIP Database
Research about Triple-X syndrome
Visit our research pages for current research about Triple-X syndrome treatments.
Statistics for Triple-X syndrome
Triple-X syndrome: Broader Related Topics
Types of Triple-X syndrome
Triple-X syndrome Message Boards
Related forums and medical stories:
User Interactive Forums
Read about other experiences, ask a question about Triple-X syndrome, or answer someone else's question, on our message boards:
Definitions of Triple-X syndrome:
A rare chromosomal aberration characterized by the presence of three X (female) chromosomes. The condition does not exhibit a distinctive phenotype and majority of the affected females are physically and mentally normal. Abnormalities are infrequent and do not occur with any regularity--they include hypertelorism, epicanthal folds, depressed nasal bridge, kyphosis and variable other anomalies. Delay in growth and mental development, when present, is usually mild. Occasionally associated with Prader-Willi syndrome.
- (Source - Diseases Database)
Triple-X syndrome is listed as a "rare disease" by the Office of
Rare Diseases (ORD) of the National Institutes of Health
(NIH). This means that Triple-X syndrome, or a subtype of Triple-X syndrome,
affects less than 200,000 people in the US population.
Source - National Institutes of Health (NIH)
Ophanet, a consortium of European partners,
currently defines a condition rare when it affects 1 person per 2,000.
They list Triple-X syndrome as a "rare disease".
Source - Orphanet
Contents for Triple-X syndrome:
User Surveys and Discussion Forums
» Next page: What is Triple-X syndrome?
Medical Tools & Articles:
Tools & Services:
Forums & Message Boards
- Ask or answer a question at the Boards: