Hot flushes what it can mean

Overview

A hot flush (sometimes called a hot flash) is a sudden feeling of warmth in the upper body, often with sweating and reddening of the skin. It usually lasts a few minutes and can happen during the day or night.

Yes, hot flushes are very common. About 3 out of 4 people going through the menopause transition experience them. However, hot flushes can also occur in people of any age or gender due to other causes.

Hot flushes most commonly affect people who are approaching or going through menopause (usually between ages 45 and 55). They can also affect people with medical conditions that disrupt hormones, such as certain cancers or thyroid problems, and people taking certain medications.

Symptoms

Common symptoms

• Sudden feeling of warmth in the face, neck, or chest
• Redness or blotchy skin (flushing)
• Sweating, especially at night
• Chills after the flush passes
• Rapid heartbeat or palpitations (feeling like your heart is pounding)

Symptoms in children

• Hot flushes are not typical in children. If a child experiences flushing or excessive sweating, it could be due to fever, infection, or a medical condition. Consult a pediatrician.

Symptoms in older adults

• In older adults, hot flushes may continue from the menopausal transition or could signal a new health issue, such as thyroid problems or medication side effects.
• Night sweats may also disturb sleep and affect overall health.

Causes

Main causes

• Hormonal changes: decreased estrogen levels, especially during perimenopause and menopause
• Certain medications: like some used for breast cancer or hormone therapy
• Medical conditions: thyroid disorders, infections, or rare tumors (like a carcinoid tumor)
• Lifestyle triggers: spicy foods, caffeine, alcohol, stress, or hot weather

Risk factors

• Being close to menopause (ages 45-55)
• Undergoing cancer treatments that affect hormones (e.g., chemotherapy, hormone blockers)
• Having a family history of hot flushes
• Smoking or being overweight
• Certain medical conditions that affect the hypothalamus (the brain's temperature control center)

When to see a doctor

See a doctor urgently if:

• Hot flushes with chest pain, shortness of breath, or sudden severe headache (call emergency services immediately)

Book a routine appointment if:

• Hot flushes that bother you or disrupt your sleep
• Hot flushes that start suddenly without a known cause
• Night sweats that cause you to change clothes or bedding
• If you are younger than 40 and have hot flushes

Diagnosis

A healthcare provider will ask about your symptoms, medical history, and any medications you take. They may also do a physical exam. Often, hot flushes can be diagnosed based on your description alone.

Tests that may be done

• Blood tests to check hormone levels (like estrogen, FSH) or thyroid function
• Tests for other causes if your pattern is unusual (e.g., a blood test for infection or a scan if a tumor is suspected)

What to expect at your appointment

Your healthcare provider will listen to your concerns and may ask about your menstrual cycles, sleep quality, and any triggers. They will explain what might be causing your hot flushes and discuss options to help manage them.

Treatment

Treatment for hot flushes depends on the cause and how much they affect your life. For mild flushes, lifestyle changes may be enough. If they are very bothersome, medical treatments can help. Never start any treatment without speaking to a healthcare provider first.

Self-care at home

• Dress in layers so you can remove clothing when a flush starts
• Keep a fan nearby and sip cool water
• Avoid triggers like spicy foods, hot drinks, caffeine, and alcohol
• Practice slow, deep breathing when a flush begins
• Maintain a healthy weight and exercise regularly

Medical treatments

If self-care is not enough, a healthcare provider may suggest hormone-related treatments (such as small amounts of estrogen) or non-hormonal prescription options. These can help reduce the frequency and severity of hot flushes. The right treatment depends on your health history and personal preferences. Discuss the benefits and risks with your provider.

When is surgery considered?

Surgery is not a treatment for hot flushes themselves. However, if hot flushes are caused by a condition that requires surgery (e.g., removal of ovaries for a serious medical reason), that surgery may lead to immediate menopause and hot flushes. In such cases, talk to your surgical team and a menopause specialist beforehand.

Living with this condition

Hot flushes can be unpredictable, but simple strategies can help you manage them. Keep a cooling spray or fan at work and at home. If night sweats disturb your sleep, try using moisture-wicking pajamas and bedding. Keep a glass of water by your bedside.

Lifestyle tips

• Exercise regularly – it can help balance hormones and improve sleep
• Learn relaxation techniques like meditation or yoga to manage stress
• Stop smoking – smoking can make hot flushes worse
• Limit alcohol and caffeine, especially in the evening

Diet and exercise

A balanced diet rich in fruits, vegetables, and whole grains may help. Some people find that soy-based foods (like tofu or edamame) ease symptoms, but evidence is mixed. Avoid eating large amounts of spicy foods. Regular moderate exercise (like brisk walking) can improve overall well-being and may reduce hot flush severity.

Mental health and emotional wellbeing

Frequent hot flushes, especially at night, can cause sleep problems, fatigue, and irritability. This can affect your mood and quality of life. If you feel anxious, sad, or overwhelmed, talk to your healthcare provider or a mental health professional. You are not alone, and help is available.

Prevention

Hot flushes cannot always be prevented, but you may reduce their frequency by avoiding known triggers and maintaining a healthy lifestyle. If you are approaching menopause, you cannot prevent them completely, but you can prepare to manage them.

Vaccines

Vaccines are not used to prevent hot flushes.

Screening programmes

There is no routine screening test for hot flushes. However, regular health check-ups can help identify and treat any underlying conditions that might cause them.

Complications

If left untreated

• Chronic sleep disruption leading to fatigue and daytime drowsiness
• Increased risk of anxiety or depression due to persistent symptoms
• Potential impact on quality of life and relationships

Long-term outlook

For most people, hot flushes are temporary. They often last for a few years around the menopause transition and then gradually improve. Even if they last longer, there are many effective ways to manage them. With support from your healthcare team, you can maintain a good quality of life.

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