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Heres What You Need to Know About Hyperemesis Gravidarum, Kate Middletons Pregnancy Condition
Leon Neal/Getty Images

Earlier today, Kensington Palace announced the exciting news that Kate Middleton and Prince William are expecting their third. But they added that the Duchess is once again suffering from hyperemesis gravidarum.

So what the heck is hyperemesis gravidarum? It may sound like a Harry Potter spell, but it's more commonly known as acute morning sickness and affects approximately one in every 100 pregnant women. Those who suffer from the condition experience severe nausea, vomiting, dehydration and low blood pressure while standing, which can often require hospitalization. While traditional morning sickness usually subsides after 14 weeks, hyperemesis gravidarum can cause vomiting up to 50 times a day throughout the entire pregnancy.

In December 2012, we learned of Middleton’s first pregnancy with Prince George because she was admitted to London's King Edward VII Hospital due to hyperemesis gravidarum. She was also hospitalized with the condition while pregnant with Princess Charlotte in 2015. 

Sending our well wishes for a third happy and healthy pregnancy to Kate Middleton and the royal family!

RELATED: Kate Middleton and Prince William Are Expecting Baby No. 3!

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