Hyperemesis Gravidarum (HG) - the more severe and persistent NVP

Unfortunately morning sickness or NVP may persist and progress to a more severe condition called Hyperemesis Gravidarum (HG), which can cause dehydration and require hospitalization.

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." Hyperemesis gravidarum (HG) is considered a rare complication of pregnancy. The percentage of pregnant women afflicted ranges from 0.3% to 2%.

Some women who have experienced hyperemesis gravidarum (HG) throughout a previous pregnancy are reluctant to plan another pregnancy as they cannot face the thought of being so ill again. If you have a history of severe Nausea and Vomiting of Pregnancy or hyperemesis gravidarum (HG), it is important to consult a qualified healthcare professional as soon as you plan another pregnancy or you think you are pregnant. He or she may recommend appropriate course of action. A preventive management approach of your morning sickness symptoms may prevent the condition to worsen and help you pursue your pregnancy as normally as possible.

If you need support or advice, you can call the Motherisk helpline at 1 800 436-8477. Their specially trained counselors will provide counseling and guide you to the appropriate resources. You can also visit these sections of our website: Tips To Help You Manage Your Morning Sickness, Frequently Asked Questions and Resources on Pregnancy.