Fragile X syndrome

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Martin-Bell syndrome; Marker X syndrome

Genetic counseling may help prospective parents with a family history of Fragile X syndrome. Genetic testing can help determine the level of risk in such a family. Accurate diagnosis is important because of the possibility of other family members inheriting either Fragile X syndrome or other problems related to an increased number of repeats in FMR1.

Review Date: 04/30/2005
Reviewed By: Neal Sondheimer, M.D., PhD., Division of Genetics and Metabolism, Children's Hospital of Philadelphia, Philadelphia, PA. Review provided by VeriMed Healthcare Network.