National Organization for Rare Disorders, Inc.

It is possible that the main title of the report Hypoparathyroidism is not the name you expected. Please check the synonyms listing to find the alternate name(s) and disorder subdivision(s) covered by this report.


  • Parathyroid, Underactivity of
  • Tetany

Disorder Subdivisions

  • None

General Discussion

Hypoparathyroidism is a condition characterized by insufficient production of parathyroid hormones by the parathyroid glands, the small, oval glands located near the thyroid gland in the neck. Parathyroid hormones (along with vitamin D and the hormone calcitonin, which is produced by the thyroid gland) play a role in regulating levels of calcium in the blood. Due to deficiency of parathyroid hormones, affected individuals exhibit abnormally low levels of calcium in the blood (hypocalcemia). Symptoms and findings associated with Hypoparathyroidism may include weakness, muscle cramps, excessive nervousness, headaches, and/or increased excitability (hyperexcitability) of nerves resulting in uncontrollable twitching and cramping spasms of certain muscles such as those of the hands, feet, arms, and/or face (tetany). Hypoparathyroidism may result from absence of the parathyroid glands at birth, occur due to or in association with a number of different underlying disorders, or result from removal of or damage to the parathyroid glands. In rare cases, Hypoparathyroidism may be inherited as an autosomal recessive genetic trait.


Hypoparathyroidism Association, Inc.
PO Box 2258
Idaho Falls, ID 83403
Tel: (208)524-3857
Tel: (866)213-0394
Email: hpth@hpth.org
Internet: http://www.hpth.org

NIH/National Digestive Diseases Information Clearinghouse
2 Information Way
Bethesda, MD 20892-3570
Tel: (301)654-3810
Fax: (301)907-8906
Tel: (800)891-5389
Email: nddic@info.niddk.nih.gov
Internet: http://www.niddk.nih.gov

Thyroid Foundation of Canada
797 Princess Street
Ontario, Intl K7L 5J7
Tel: 6135448364
Fax: 6135449731
Tel: (800) 267-8822
Email: thyroid@kos.net
Internet: http://www.thyroid.ca

NIH/National Institute of Child Health and Human Development
31 Center Dr
Building 31, Room 2A32
Bethesda, MD 20892
Tel: (301)496-5133
Fax: (301)496-7101
Internet: http://www.nichd.nih.gov/

Thyroid Society for Education & Research
7515 S. Main
Houston, TX 77030
Tel: (713)799-9909
Fax: (713)799-9919
Tel: (800)849-7643
Email: thyroid@neosoft.com
Internet: http://www.the-thyroid-society.org

Hormone Foundation
8401 Connecticut Ave
Suite 900
Chevy Chase, MD 20815
Fax: (310)941-0259
Tel: (800)467-6663
Email: hormone@endo-society.org
Internet: http://www.hormone.org

MUMS National Parent-to-Parent Network
150 Custer Court
Green Bay, WI 54301-1243
Tel: (920)336-5333
Fax: (920)339-0995
Tel: (877)336-5333
Email: mums@netnet.net
Internet: http://www.netnet.net/mums/

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
Email: ordr@od.nih.gov
Internet: http://rarediseases.info.nih.gov/Default.aspx

For a Complete Report

For a Complete Report

This is an abstract of a report from the National Organization for Rare Disorders, Inc. ® (NORD). A copy of the complete report can be obtained for a small fee by visiting the NORD website. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational treatments (if available), and references from medical literature. For a full-text version of this topic, see http://www.rarediseases.org/search/rdblist.html

related physicians

related services

Bon Secours International| Sisters of Bon Secours USA| Bon Secours Health System

This information does not replace the advice of a doctor. Healthwise disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Privacy Policy. How this information was developed to help you make better health decisions.