Hyperemesis gravidarum (HG) is an uncommon condition
characterized by frequent, persistent, and severe vomiting and
nausea during pregnancy. As a result, you may be unable to take
in a sufficient amount of food and fluids. It can cause a weight
loss of more than 5% of your pre-pregnancy body weight. This can
also cause dehydration and vitamin and mineral deficiencies.
Treatment may require hospitalization. HG is a more severe form
of nausea and vomiting of pregnancy (NVP), also called morning
sickness. Morning sickness affects anywhere between 50% to 90%
of pregnant women. HG is estimated to occur in 0.5%-2% of
pregnancies. There are many theories about the causes of HG, but
none have been confirmed. HG is a complex disease that is likely
caused by many factors. Some of these include: The Brain May Be
Cause of Nausea Copyright © Nucleus Medical Media, Inc. Some
researchers have found that the following factors increase your
chance of developing HG. If you have any of these risk factors,
tell your doctor: The