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Symptoms
By Mayo Clinic staffTriple X syndrome may not cause any signs or symptoms. If symptoms do appear, they may include:
- Tall stature
- Small head (microcephaly)
- Vertical skinfolds that may cover the inner corners of the eyes (epicanthal folds)
- Delayed development of certain motor skills, speech and language
- Learning disabilities, such as dyslexia
- Weak muscle tone
When to see a doctor
See your daughter's doctor if you have any concerns about your daughter's developmental progress. Your doctor can help determine what may be the cause and suggest appropriate action.
References
- Otter M, et al. Triple X syndrome: A review of the literature. European Journal of Human Genetics. 2010;18:265.
- Triple X syndrome. U.S. National Library of Medicine's Genetics Home Reference. http://ghr.nlm.nih.gov/condition/triple-x-syndrome. Accessed June 14, 2010.
- Tartaglia NR, et al. A review of trisomy X (47,XXX). Orphanet Journal of Rare Diseases. 2010;5:8.
- Lalatta F, et al. Triple X syndrome: Characteristics of 42 Italian girls and parental emotional response to prenatal diagnosis. European Journal of Pediatrics. In press. Accessed June 14, 2010.
- Zabel CA (expert opinion). Mayo Clinic, Rochester, Minn. July 6, 2010.
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