Hyperemesis Gravidarum (HG) is a complication in pregnancy characterized by symptoms including severe nausea, persistent vomiting, weight loss, and dehydration. 

Women are at higher risk for hyperemesis if they have had the problem in previous pregnancies or are prone to motion sickness.

虽然大多数晨吐症状在妊娠初期就会消失，但很多孕妇的妊娠剧吐症状会一直延续到妊娠后期。  

Learn more about the symptoms, diagnosis, and treatment for hyperemesis gravidarum at MedlinePlus.gov.

This page is for informational purposes only and does not substitute the medical advice of a qualified physician or healthcare provider.