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Hypoparathyroidism

National Organization for Rare Disorders, Inc.

Important

It is possible that the main title of the report Hypoparathyroidism is not the name you expected.

Disorder Subdivisions

  • Acquired Hypoparathyroidism
  • Autoimmune Hypoparathyroidism
  • Congenital Hypoparathyroidism
  • Idiopathic Hypoparathyroidism

General Discussion

Hypoparathyroidism is a rare condition in which the parathyroid glands fail to produce sufficient amounts of functional parathyroid hormone. The parathyroid glands are part of the endocrine system, the network of glands that secrete hormones into the bloodstream where they travel to various areas of the body. These hormones regulate the chemical processes (metabolism) that influence the function of various organs and activities within the body. Hormones are involved in numerous vital processes including regulating heart rate, body temperature and blood pressure as well as cell differentiation and growth and also in modulation of several metabolic processes. Parathyroid hormone (along with vitamin D and the hormone calcitonin, which is produced by the thyroid gland) plays a role in regulating the levels of calcium and phosphorus in the blood. Due to a deficiency of parathyroid hormone, individuals may exhibit abnormally low levels of calcium in the blood (hypocalcemia) and high levels of phosphorus.



Hypocalcemia can cause a variety of symptoms including weakness, muscle cramps, excessive nervousness, headaches, and/or uncontrollable twitching and cramping spasms of certain muscles such as those of the hands, feet, arms, and/or face (tetany). The most common cause of hypoparathyroidism is damage to or removal of the parathyroid glands due to surgery for another condition. Hypoparathyroidism can also be caused by an autoimmune process or can occur for unknown reasons (idiopathic) or in association with a number of different underlying disorders.



In extremely rare cases, hypoparathyroidism may occur as a genetic disorder. Such cases can include familial hypoparathyroidism, which may be inherited as an autosomal recessive, autosomal dominant or X-linked recessive trait. NORD has a separate report on familial isolated hypoparathyroidism.

Resources

Hypoparathyroidism Association, Inc.

PO Box 2258

Idaho Falls, ID 83403

Tel: (866)213-0394

Fax: (205)524-3857

Tel: (866)213-0394

Email: hpth@hypopara.org. hpth@hypopara.org. hpth@hypopara.org. hpth@hypopara.org

Internet: http://www.hypopara.org



NIH/National Institute of Diabetes, Digestive & Kidney Diseases

Office of Communications & Public Liaison

Bldg 31, Rm 9A06

31 Center Drive, MSC 2560

Bethesda, MD 20892-2560

Tel: (301)496-3583

Email: NDDIC@info.niddk.nih.gov

Internet: http://www2.niddk.nih.gov/



Thyroid Foundation of Canada

263 MCG Building

Labrosse Ave

Pointe-Claire

QC, H9R 1A3

Canada

Fax: 5146309815

Tel: 8002678822

Internet: http://www.thyroid.ca



Endocrine Society

8401 Connecticut Ave

Suite 900

Chevy Chase, MD 20815

USA

Tel: (301)941-0200

Fax: (301)941-0259

Tel: (888)363-6274

Email: societyservices@endo-society.org

Internet: http://www.endo-society.org



NIH/National Institute of Child Health and Human Development

31 Center Dr

Building 31, Room 2A32

MSC2425

Bethesda, MD 20892

Fax: (866)760-5947

Tel: (800)370-2943

TDD: (888)320-6942

Email: NICHDInformationResourceCenter@mail.nih.gov

Internet: http://www.nichd.nih.gov/



American Thyroid Association

6066 Leesburg Pike, Suite 550

Falls Church, VA 22041

USA

Tel: (703)998-8890

Fax: (703)998-8893

Email: thyroid@thyroid.org

Internet: http://www.thyroid.org



Hormone Health Network

8401 Connecticut Avenue

Suite 900

Chevy Chase, MD 20815-5817

Fax: (310)941-0259

Tel: (800)467-6663

Email: hormone@endo-society.org

Internet: http://www.hormone.org/



Genetic and Rare Diseases (GARD) Information Center

PO Box 8126

Gaithersburg, MD 20898-8126

Tel: (301)251-4925

Fax: (301)251-4911

Tel: (888)205-2311

TDD: (888)205-3223

Internet: http://rarediseases.info.nih.gov/GARD/



For a Complete Report

This is an abstract of a report from the National Organization for Rare Disorders (NORD). A copy of the complete report can be downloaded free from the NORD website for registered users. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational therapies (if available), and references from medical literature. For a full-text version of this topic, go to www.rarediseases.org and click on Rare Disease Database under "Rare Disease Information".

The information provided in this report is not intended for diagnostic purposes. It is provided for informational purposes only. NORD recommends that affected individuals seek the advice or counsel of their own personal physicians.

It is possible that the title of this topic is not the name you selected. Please check the Synonyms listing to find the alternate name(s) and Disorder Subdivision(s) covered by this report

This disease entry is based upon medical information available through the date at the end of the topic. Since NORD's resources are limited, it is not possible to keep every entry in the Rare Disease Database completely current and accurate. Please check with the agencies listed in the Resources section for the most current information about this disorder.

For additional information and assistance about rare disorders, please contact the National Organization for Rare Disorders at P.O. Box 1968, Danbury, CT 06813-1968; phone (203) 744-0100; web site www.rarediseases.org or email orphan@rarediseases.org

Last Updated:  7/7/2011

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