A term used to describe severe cases of morning sickness. It is most common between the sixth and fourteeth weeks, caused by hormonal changes in the body. To minimize discomfort eat small meals that are easy to digest, taking care not to allow the stomach to be empty. Hospitalization may be required.
Hyperemesis gravidarum (from Greek hyper and Latin emesis and gravida; meaning "excessive vomiting of pregnant women") is a severe form of morning sickness. According to the Hyperemesis Education and Research Foundation, hyperemesis gravidarum (HG) is described as "unrelenting, excessive pregnancy-related nausea and/or vomiting that prevents adequate intake of food and fluids." It is considered a rare complication of pregnancy.