Nausea & vomiting in pregnancy (NVP), commonly known as "morning sickness", affects 50-90% of pregnant women.
In most women, the condition manifests between the 4th-7th week after last menstrual period and resolves by the 16th week of gestation.
It manifests in a spectrum of severity from mild nausea to very rare life-threatening symptoms.
The etiology is multifactorial.
The pregnant woman's sense of well-being and her daily activities are greatly affected by nausea and vomiting; the physical and emotional impact often leads to anxiety and worry about the effect of the symptoms on the fetus and reduced job efficiency.
Elevated levels of human chorionic gonadotropin (hCG) as well as a history of depression and increased depressive symptoms in the twelfth to fourteenth week of gestation contribute to a higher likelihood of having nausea and vomiting during pregnancy (NVP), a study has found.
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