Definition of Pregnancy, pernicious vomiting of
Pregnancy, pernicious vomiting of: Medically known as hyperemesis gravidarum, this is excessive vomiting in early pregnancy. By definition, hyperemesis gravidarum, leads to the loss of 5% or more of the body weight of the woman.
Hyperemesis gravidarum affects about one in every 300 pregnant women. It is more common in young women, in first pregnancies and in women with multiple pregnancies (twins, triplets, etc.)
Hyperemesis gravidarum is usually self-limited (stops on its own) and, although very inconvenient and very discomforting, it is usually of little clinical consequence. However, sometimes hyperemesis can keep the mother from getting the necessary fluids and nutrition.
Some women with hyperemesis gravidarum have high concentrations of the hormones hCG (human chorionic gonadotropin) or estrogen or thyroid hormones in the blood. A few women also have clinical manifestations of hyperthyroidism (over-active thyroid state).
The treatment of mild hyperemesis gravidarum is usually with dietary measures, rest and antacids. Severe hyperemesis gravidarum may call for intravenous fluid and nutrition.
Hyperemesis gravidarum is the Latin for excessive vomiting in pregnancy. Hyper means "over"; emesis means "vomiting"; and gravidarum means "pregnant state."
Last Editorial Review: 8/28/2013
Back to MedTerms online medical dictionary A-Z List
Need help identifying pills and medications?
- Allergic Skin Disorders
- Bacterial Skin Diseases
- Bites and Infestations
- Diseases of Pigment
- Fungal Skin Diseases
- Medical Anatomy and Illustrations
- Noncancerous, Precancerous & Cancerous Tumors
- Oral Health Conditions
- Papules, Scales, Plaques and Eruptions
- Scalp, Hair and Nails
- Sexually Transmitted Diseases (STDs)
- Vascular, Lymphatic and Systemic Conditions
- Viral Skin Diseases
- Additional Skin Conditions