Hot flashes -

Hot flashes are the most common symptom of menopause and perimenopause.

It's a sudden feeling of heat and sometimes a red, flushed face and sweating. We don't know exactly what causes them, but they may be related to changes in circulation.

Causes

The cause of hot flashes isn't known, but it's likely related to several factors. These include changes in reproductive hormones and in your body's thermostat (hypothalamus), which becomes more sensitive to slight changes in body temperature.