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Is hyperemesis gravidarum common in the second trimester?

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

Hyperemesis gravidarum usually appears around 6-8 weeks of gestation, which would correspond to the first trimester of pregnancy. However, hyperemesis gravidarum has a duration that does involve the second trimester, as it often begins to subside around the 20th week of gestation.

On the other hand, if the onset of vomiting is late in the second trimester, the specialist should carefully rule out other possible causes before diagnosing hyperemesis gravidarum.

 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.