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Is hyperemesis gravidarum the same as morning sickness?

By Silvia Azaña Gutiérrez B.Sc., M.Sc. (embryologist).
Last Update: 04/05/2022

No. Morning sickness, so-called even though it can occur at any other time of the day, is very common in pregnant women and can occur in up to 80-90% of pregnancies.

Hyperemesis gravidarum is a less common form of nausea and vomiting during pregnancy, occurring in 0.3 to 3.6% of cases. However, it is a more severe condition, as the vomiting is constant and intense and can lead to weight loss and dehydration of the pregnant woman.

 Silvia Azaña Gutiérrez
Silvia Azaña Gutiérrez
B.Sc., M.Sc.
Embryologist
Graduate in Health Biology from the University of Alcalá and specialized in Clinical Genetics from the same university. Master in Assisted Reproduction by the University of Valencia in collaboration with IVI clinics.
License: 3435-CV
Embryologist. Graduate in Health Biology from the University of Alcalá and specialized in Clinical Genetics from the same university. Master in Assisted Reproduction by the University of Valencia in collaboration with IVI clinics. License: 3435-CV.