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Diseases

Genetic and Rare Diseases Information Center (GARD)

Swyer syndrome


Other Names for this Disease
  • 46, XY CGD
  • 46, XY complete gonadal dysgenesis
  • 46, XY pure gonadal dysgenesis
  • Gonadal dysgenesis, XY female type
  • 46,XY CGD
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Treatment

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How might Swyer syndrome be treated?

The treatment of a person with Swyer syndrome may depend on the specific characteristics that each person has. Some people need surgery to repair the external genitalia and to create and/or enlarge the vagina. Hormone replacement therapy (HRT) is typically needed from puberty onward and usually includes estrogen and progesterone.[1] In addition to helping with normal development of secondary sexual characteristics, HRT can help prevent bone loss and thinning (osteoporosis) later in life.[2] Abdominal dysgenetic gonads (testes or ovaries with abnormal development) or streak gonads, which are common in people with Swyer syndrome, are at increased risk for gonadal tumors such as gonadoblastoma and should be surgically removed. Although women with Swyer syndrome are infertile, they may become pregnant and carry to term through egg donation.[1]
Last updated: 11/16/2015

References
  1. Harry Ostrer. 46,XY Disorder of Sex Development and 46,XY Complete Gonadal Dysgenesis. GeneReviews. September 15, 2009; http://www.ncbi.nlm.nih.gov/books/NBK1547/. Accessed 3/30/2012.
  2. Swyer syndrome. NORD. September 4, 2008; http://www.rarediseases.org/rare-disease-information/rare-diseases/byID/1204/viewAbstract. Accessed 3/30/2012.


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Management Guidelines

  • GeneReviews provides current, expert-authored, peer-reviewed, full-text articles describing the application of genetic testing to the diagnosis, management, and genetic counseling of patients with specific inherited conditions.
Other Names for this Disease
  • 46, XY CGD
  • 46, XY complete gonadal dysgenesis
  • 46, XY pure gonadal dysgenesis
  • Gonadal dysgenesis, XY female type
  • 46,XY CGD
See Disclaimer regarding information on this site. Some links on this page may take you to organizations outside of the National Institutes of Health.