Nausea and Vomiting of Pregnancy — a Feto-protective Mechanism against Embryotoxins?

@article{Hook1974NauseaAV,
  title={Nausea and Vomiting of Pregnancy — a Feto-protective Mechanism against Embryotoxins?},
  author={Ernest B. Hook},
  journal={Pediatric Research},
  year={1974},
  volume={8},
  pages={344-344}
}
Nausea and vomiting (NVP) occurs by some estimates in up to 80% of pregnancies. Pathologic sequellae in the fetus do not occur unless NVP results in the rare Hyperemesis gravidarum syndrome (HEG). Some studies suggest that the absence of NVP is an indication of greater fetal risk. The severity and frequency of NVP is greatest (in those Without HEG) early in gestation during the “critical period”. I suggest 1) NVP is directly feto-protective by diminishing exposure to environmental embryotoxins… CONTINUE READING