When nausea from pregnancy is life-threatening
- Written by Marlena Schoenberg Fejzo, Associate Researcher in Medicine, University of California, Los Angeles

Most women experience some type of morning sickness during pregnancy, but some women develop a far more serious condition.
Hyperemesis gravidarum (HG), which causes severe nausea and vomiting during pregnancy, affects as many as 3 percent of pregnancies, leading to over 167,000 emergency department visits...