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Fevers During Pregnancy

by Lara A. Friel, MD, PhD

A temperature higher than 103° F (39.5° C) during the 1st trimester increases the risk of a miscarriage and defects of the brain or spinal cord in the baby. Fever late in pregnancy increases the risk of preterm labor.

Doctors treat the cause of the fever, but women can also take acetaminophen to lower the temperature.

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