Do Hot Flashes Raise Body Temperature?

menopause body temperature link

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Hot flashes are a common symptom for women during menopause. These flashes of heat can be accompanied by sweating, rapid heartbeat, and flushing of the skin. Many women report having a fever during a hot flash, leading to the question: do hot flashes raise body temperature? The short answer is no. Hot flashes do not typically raise body temperature above the normal range. In fact, during a hot flash, body temperature may actually decrease slightly before returning to its baseline level. But first, the basic question is, what causes hot flashes in the first place?

What Causes Hot Flashes?

Hot flashes are a common symptom that many women experience during menopause, but they can also affect men and women who are undergoing certain medical treatments or have medical conditions. Hot flashes are characterized by a sudden warmth that spreads throughout the body, accompanied by sweating and sometimes a rapid heartbeat.

However, the hot flash experience can still be uncomfortable and disruptive to daily life.
To understand why hot flashes do not raise body temperature, it is important to understand what causes them. Hot flashes are connected to changes in hormone levels during menopause. Specifically, the decline in estrogen levels is thought to play a major role.

Estrogen is involved in regulating body temperature, and as levels decrease, the hypothalamus (the part of the brain that controls body temperature) may become more sensitive to small changes in temperature. This can cause the body to overreact to even minor increases in heat, leading to a hot flash.

The precise cause of hot flashes is not fully understood but is believed to be related to changes in the body’s hormone levels. During menopause, the ovaries produce less estrogen, affecting the body’s temperature regulation system. The brain’s hypothalamus, which controls body temperature, may misinterpret signals from the body and trigger a hot flash. This is why hot flashes are often accompanied by a feeling of being overheated or sweaty.

See: Natural remedies for hot flashes

Other factors can also cause hot flashes. Certain medications, such as hormonal therapies or antidepressants, can cause hot flashes as a side effect. Medical treatments that affect the body’s hormone levels, such as chemotherapy or radiation therapy, can also trigger hot flashes. Medical conditions related to thyroid problems or diabetes can also cause hot flashes.

Stress & Anxiety

Stress and anxiety can also play a role in hot flashes, and the body’s stress response can cause changes in hormone levels and trigger hot flashes. Additionally, some people may be more prone to experiencing hot flashes due to genetics or lifestyle factors such as smoking or alcohol consumption.

Body temperatures during menopausal hot flashes

During a hot flash, the body temperature can rise by several degrees, leading to discomfort and embarrassment. The increase in body temperature is due to the hormonal changes that occur during menopause. The primary hormone involved in hot flashes is estrogen, which regulates body temperature by acting on the hypothalamus (part of the brain responsible for controlling your sex hormones, appetite, body temperature, and sleep cycles.

Brain Response To Estrogen Decline

Estrogen levels decline during menopause, leading to changes in the hypothalamus, making it more sensitive to small changes in body temperature. When the hypothalamus senses a temperature rise, it triggers a response to cool down the body. This response includes increasing blood flow to the skin, sweating, and dilating blood vessels, which can cause a sudden flush of heat.

The rise in body temperature during a hot flash can be uncomfortable, but it is generally not harmful. However, in rare cases, the body temperature can rise to dangerous levels, leading to heatstroke. Heatstroke is a medical emergency that can cause organ damage and even death.

Body Temperature In Normal Range

However, despite the sensation of heat, the actual body temperature typically remains within the normal range.
In fact, studies have shown that during a hot flash, body temperature may actually decrease slightly before returning to baseline levels. For example, one study published in the journal Menopause measured body temperature in a group of women during hot flashes and found that body temperature decreased by an average of 0.14°C during a hot flash before returning to baseline levels afterward. This suggests that hot flashes do not raise body temperature above the normal range but cause temporary temperature fluctuations.

It is worth noting, however, that some women may experience a more significant increase in body temperature during a hot flash. In rare cases, hot flashes can be accompanied by a fever, which is defined as a body temperature of 100.4°F (38°C) or higher.

This is more likely to occur in women who are undergoing menopause as a result of cancer treatment, as certain cancer therapies can cause damage to the hypothalamus and disrupt its ability to regulate body temperature. It is important to get medical attention to rule out other underlying causes of fever.

While hot flashes may not raise body temperature above the normal range, they can still have an impact on a woman’s quality of life. Many women report that hot flashes disrupt their sleep, leading to brain fog, fatigue and irritability. They can also be embarrassing when they occur during important meetings or social events.

See: Natural Remedies For Menopause

There are several options for women to manage hot flashes and reduce their impact. These may include:

Dressing in layers: Wearing light, breathable clothing that can be easily changed as needed can help to regulate body temperature and prevent overheating.

Avoiding triggers: Certain triggers, such as caffeine, spicy foods, and alcohol, can exacerbate hot flashes. Avoiding these triggers or reducing their consumption may help lower hot flashes’ frequency and intensity.

Stress reduction techniques: Stress can exacerbate hot flashes, so practicing relaxation techniques such as meditation, deep breathing, or yoga may help to reduce their frequency and intensity.

Hormone Therapy: Hormone therapy involves taking estrogen and/or progesterone to replace declining hormone levels, which can effectively reduce hot flashes. However, it is unsuitable for everyone and can have potential risks and side effects.

Hot flashes can be uncomfortable, but options and strategies can help you manage them. Lifestyle changes like avoiding triggers like caffeine, spicy foods, or alcohol, staying cool with a fan or air conditioning, and dressing in layers can help. Hormone replacement therapy can also be an option for some women experiencing severe hot flashes, but you must talk to a healthcare provider about the risks and benefits.


Many factors, including changes in hormone levels, medical treatments, and stress, can cause hot flashes. While they can be uncomfortable, some strategies can help manage them. If you are experiencing hot flashes, you must talk to a doctor to determine the root cause and discuss potential treatment options.


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