National Organization for Rare Disorders, Inc.
It is possible that the main title of the report Hyperemesis Gravidarum is not the name you expected.
Hyperemesis gravidarum (HG) is a rare disorder characterized by severe and persistent nausea and vomiting during pregnancy that may necessitate hospitalization. As a result of frequent nausea and vomiting, affected women experience dehydration, vitamin and mineral deficit, and the loss of greater than five percent of their original body weight.
Nausea and vomiting of pregnancy (NVP), more widely known as morning sickness, is a common condition of pregnancy. Many researchers believe that NVP should be regarded as a continuum of symptoms that may impact an affected woman's physical, mental and social well-being to varying degrees. Hyperemesis gravidarum represents the severe end of the continuum. No specific line exists that separates hyperemesis gravidarum from NVP; in most cases, affected individuals progress from mild or moderate nausea and vomiting to hyperemesis gravidarum. The exact cause of hyperemesis gravidarum is not known.
Genetic and Rare Diseases (GARD) Information Center
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National Healthy Mothers, Healthy Babies Coalition
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For a Complete Report
This is an abstract of a report from the National Organization for Rare Disorders (NORD). For a full-text version of this report, 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.
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.
Last Updated: 4/28/2015
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