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Why do I get hot flashes during pregnancy?

Dr. Michael Roizen, MD
Internal Medicine
Seven out of ten women experience hot flashes or night sweats during pregnancy. This happens when intense heat spreads throughout the upper body for anywhere from thirty seconds to five minutes - typically starting in the neck and head, but sometimes starting in the breast or lower. The intensity and frequency varies from woman to woman.

Nobody's quite sure what causes hot flashes (though we do know they can be triggered by spicy foods, hot drinks, alcohol, and stress). But some research shows that, fluctuating levels of estrogen may be the root of them (low blood sugar and hyperthyroidism are also thought to cause them). If you find that the hot flashes are more than just a temporary discomfort, you should talk to your doctor about looking for a root cause.
YOU: Having a Baby: The Owner's Manual to a Happy and Healthy Pregnancy

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YOU: Having a Baby: The Owner's Manual to a Happy and Healthy Pregnancy

Can I get a cavity filled while pregnant? Will avoiding spicy foods make my kid a picky eater? Can I really increase my baby's IQ while she's in utero? Whether you're pregnant for the first time,...

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.