Hot flashes are caused when estrogen drops suddenly (likely thanks to disregulation from the hypothalamus), which causes the body’s inner temperature to drop as well. The body’s response to this sudden cooling is to cause it to warm up rapidly, hence: a hot flash.
As I mentioned, this is normally caused by a sudden drop in estrogen. Normally they are seen in menopausal or premenopausal women. I am unsure if a hot flash can be a sign of an estrogen imbalance in a cycling woman outside of perimenopause.
Is it normal to have hot flashes around ovulation?
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