Causes for Severe Morning Sickness

The world is abuzz with news that England’s new princess is expecting a baby; however, the celebratory announcement came on the heels of a serious incident. On December 3, 2012, the Duchess of Cambridge, Kate Middleton, was hospitalized for hyperemesis gravidarum, or severe morning sickness. OB/GYN Dr. Lisa Masterson explains that three out of four pregnant women will experience some degree of morning sickness during their first trimester. Learn what triggers the condition and how to avoid it.