Different types of hot flashes are accompanied by different systemic symptoms and tongue and pulse. Yin deficiency may be accompanied by menstrual disorders, heavy or scanty menstrual flow, reddish color, dizziness, tinnitus, heat in the ears, lumbar and knee pain and weakness, red tongue with little moss, and a fine pulse; dampness-heat may be accompanied by heavy menstruation, disrupted cycles, profuse menstrual flow, dullness, and loose stools, with whitish moss on the tongue, and a numeral pulse; and solid heat of the intestines and stomach may be accompanied by thirst, heartburn, abdominal distension, and constipation, with a yellowish moss, and a numeral pulse. Hot flashes are a common symptom of menopause and pre-menopause: they can occur years before menopause. Hot flashes usually feel like they coincide with sweating and palpitations and last 20 to 30 minutes. The sensation of hot flashes usually starts in the face or chest, but may also start in other areas, such as the back of the neck, and spreads rapidly throughout the body, with some patients experiencing syncope. In some cases, there is significant flushing of the face. Hot flashes may occur several times a day, several times a week, or every few minutes. There are also menopausal women who do not experience hot flashes. Most women experience mild hot flashes during menopause, with severe cases experiencing dozens of episodes per day. Hot flashes can be exacerbated by natural temperature changes and changes in ambient temperature. Severe hot flashes are usually accompanied by insomnia, which can affect mood and cause mental health problems. Some women experience hot flashes and night sweats only at night, with no daytime episodes. What are the tests for hot flashes? The symptoms of red flashes and hot flashes are due to the decrease of estrogen level in the body, which causes vegetative nerve dysfunction and vasodilatation dysfunction, accompanied by sweating, palpitations, dizziness, etc. In 80% of the patients, the symptoms can last for more than 1 year, and some of them can be maintained until about 5 years after menopause. Symptoms are generally more severe in pre-menopause and early menopause, and as the time to menopause grows longer, the frequency and intensity of the attacks will gradually diminish, and finally disappear naturally. The frequency, severity and duration of hot flashes vary greatly from person to person: some people have occasional episodes of hot flashes for a short period of time; others have them several times a day, lasting from a few seconds to a few minutes; in severe cases, they may occur frequently, even once every few minutes, and more than 30 to 50 times a day, with a duration of up to 10-15 minutes, and they occur more often in the afternoon, at dusk, or at night. They tend to attack easily after activities, after eating or when there is an increase in heat such as overdressing and overcovering, thus affecting mood, work and sleep, and often making the patient feel miserable.