This revision: 27th April 2013 .
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Occurring in 1 in 2000, the syndrome manifests itself in a number of ways. There are characteristic physical abnormalities, such as short stature, swelling, broad chest, low hairline, low-set ears, and webbed necks. Girls with Turner syndrome typically experience gonadal dysfunction, which results in amenorrhea and sterility.
Turner syndrome does not typically cause mental retardation or impair cognition. However, learning difficulties are common among women with Turner syndrome particularly a specific difficulty in perceiving spatial relationships, such as nonverbal learning disorder. This may also manifest itself as a difficulty with motor control or with mathematics. While it is non-correctable, in most cases it does not cause difficulty in daily living.
Most Turner Syndrome patients are employed as adults and lead productive lives.
There is also a rare variety of Turner Syndrome, known as "Ring-X Turner Syndrome", which has an approximate 60 percent association with mental retardation. This variety accounts for approximately 2–4% of all Turner Syndrome cases.
The incidence of Turner syndrome in live female births is believed to be around 1 in 2000.