What Are Vasomotor Symptoms of Menopause? Symptoms, Causes, Diagnosis, Treatment, and Prevention

Medically Reviewed

Vasomotor symptoms (VMS) is the umbrella term for hot flashes and night sweats, the most common menopausal symptoms. Hot flashes and night sweats affect approximately 75 percent of women going through menopause, according to the North American Menopause Society (NAMS).

Signs and Symptoms of Vasomotor Symptoms

VMS are different for each woman and may be different based on where you live and your race, ethnicity, and other individualized factors, but they generally are described as:

  • An intense or mild feeling of heat, particularly in your chest, neck, and face
  • A red, flushed face
  • Increased heartbeat or heart palpitations
  • Sweating (this is your body’s way to try to cool down)
  • Feeling chilled as the hot flash goes away
  • Vertigo
  • Anxiety

The length of each hot flash can vary from one to five minutes. Frequency and intensity vary from woman to woman, too. Women report having them from 10 times per day to several times per week, according to a meta-analysis published in the Journal of General Internal Medicine. Some find them mildly annoying, while others feel that their lives are seriously disrupted.

The mean duration that women experience hot flashes and night sweats is seven to nine years; one-third of women will continue to have VMS for a decade or more. For a very few, they may never stop, notes Harvard Health Publishing.

Common Questions & Answers

What are vasomotor symptoms of menopause?
Vasomotor symptoms (VMS) of menopause include menopausal hot flashes and night sweats. These sudden episodes of heat and perspiration may occur in women in and around the menopause transition, when hormone levels fluctuate.
How long do vasomotor symptoms of menopause last?

A hot flash episode can be different for each woman. It may last one or five minutes; it may be mild or severe. Frequency varies: Some women have several per day; others have several per week. The average duration for experiencing VMS is about seven years to nine years, but for some women, it can last 10 years or longer. Black women have been found to have the longest reported VMS.

What causes hot flashes besides menopause?
Sometimes hot flashes can be related to medical problems (such as infection, thyroid disease, tuberculosis, or HIV) or drug regimens (such as tamoxifen, opioids, and aromatase inhibitors). If you are unsure or have other unexplained symptoms, see a healthcare professional.
Do I need to see a doctor about vasomotor symptoms of menopause?

If hot flashes or night sweats are significantly disrupting your life, including your sleep, see a healthcare professional to discuss possible treatments and lifestyle changes.

Causes and Risk Factors of Vasomotor Symptoms

VMS in menopause are triggered by decreasing and fluctuating hormone levels. While the exact explanation isn’t entirely known, researchers hypothesize that decreased estrogen levels may cause your body’s temperature control (the hypothalamus in the brain) to become more sensitive. Certain women are at a higher risk of hot flashes than others. According to the Mayo Clinic, risk factors include:

  • Smoking
  • Obesity
  • Race Compared with white women, Black women face a higher risk, while Asian women are at less risk.
  • Ongoing Stress
  • Symptoms of Depression
  • A History of Abuse Preliminary research suggests that abuse or financial hardship early in life is linked to worse menopausal symptoms.

How Are Vasomotor Symptoms of Menopause Diagnosed or Identified?

Healthcare professionals can usually recognize VMS just from a description of your symptoms, your age, and how far along you are in the menopause process, per the Mayo Clinic. It’s not often that they will use a blood test to help establish the diagnosis.

Treatment and Medication Options for Vasomotor Symptoms

The best hot flash is the one that doesn’t happen at all or as frequently or intensely. A variety of therapies can try to make this a reality.

Medications

Hormone Therapy

Hormone therapy (HT) is the most effective treatment of vasomotor symptoms. Risks vary from woman to woman so make sure you have a thorough discussion with your healthcare professional about your particular needs, advises the Mayo Clinic. You could also see a menopause specialist who has extra training on how to care for you during your menopause transition. The general advice about hormone therapy from NAMS (PDF) is to use the lowest dose for the shortest amount of time for menopause symptoms.

Nonhormonal Therapy

If you can’t or would rather not take HT, there are some nonhormonal options. Researchers have been finding some success with oxybutynin (Ditropan), GABAergics, clonidine (Catapres), selective serotonin reuptake inhibitors, and selective serotonin-norepinephrine reuptake inhibitors, notes the Cleveland Clinic. More are under development. Again, discuss with your doctor about the best fit for you.

Lifestyle Changes

  • Quit smoking. Research has shown benefits regarding menopausal symptoms.
  • Dress in layers and try to avoid temperature shifts.
  • Drink cold beverages, advises the Cleveland Clinic, or run cool water over your face and wrists.
  • Manage your weight. Studies show that hot flashes are related to body mass index.

Diet and Dietary Changes

Avoid foods that are known to trigger or aggravate hot flashes, suggests the Cleveland Clinic:

  • Alcohol
  • Caffeine
  • Spicy foods
  • Hot beverages
  • Processed sugar (candy, cookies, cakes)

Instead, try to fill your plate with these possible hot flash reducers:

  • Soy foods and natural soy products such as tofu. Avoid overly processed soy foods that contain higher levels of salt, sugar, bad fats, additives, and fillers.
  • Foods rich in omega-3-rich fatty acids. Salmon, mackerel, tuna, herring, sardines, and other cold-water fatty fish are all included.
  • Plant-based foods are a core part of Mediterranean-style eating. With its emphasis on vegetables, fruits, nuts, legumes, seeds, olive oil, and fish, and its moderate use of dairy and limited consumption of red meat, the Mediterranean Diet has been shown to reduce the risk of hot flashes.

RELATED: The Best and Worst Foods for Hot Flashes and Night Sweats

Alternative and Complementary Therapies for Vasomotor Symptoms of Menopause

Related Conditions

While most symptoms are transitory, vasomotor symptoms may be associated with an increase risk for other health issues.

Prevention of Vasomotor Symptoms of Menopause

Experts stress that lifestyle changes aren’t enough to prevent hot flashes and night sweats from occurring. The National Institute on Aging offers these strategies to help you manage or reduce symptoms:

  • Try to maintain a healthy weight.
  • Quit smoking.
  • Keep the thermostat lower in your bedroom if symptoms keep you up at night. Use a fan, drink small amounts of ice water before bedtime, and layer bedding so you can shed or add blankets if needed.
  • Avoid foods and drinks that may trigger vasomotor symptoms, like alcohol, spicy foods, hot beverages, and caffeine.

Studies are ongoing; some research, per the National Center for Complementary and Integrative Health, suggests that practices such as hypnotherapy and mindfulness meditation could help with symptom management.

Resources We Love

Hot Flashes and Cool Topics

This Facebook page, which has over 4,000 members, calls itself “a community for women in midlife and beyond who are changing the old narratives on this stage of life.”

Menopause Now

This educational site allows users to search for information by specific symptoms.

North American Menopause Society

This nonprofit organization is dedicated to promoting the health and quality of life for women via an understanding of menopause and healthy aging. It provides resources for healthcare professionals and the public.

Red Hot Mamas

Created by Karen Giblin, Red Hot Mamas is an online organization that provides education and support for women in their menopause experience. Studies show that having emotional support may help ease menopausal symptoms.

Editorial Sources and Fact-Checking

  • Menopause FAQs: Hot Flashes. North American Menopause Society.
  • Politi MC, Schleinitz MD, Col NF. Revisiting the Duration of Vasomotor Symptoms of Menopause: A Meta-Analysis. Journal of General Internal Medicine. September 2008.
  • Menopause-Related Hot Flashes and Night Sweats Can Last for Years. Harvard Health Publishing. August 14, 2020.
  • Hot Flashes: Symptoms and Causes. Mayo Clinic. May 20, 2022.
  • Thurston RC, Aslanidou Vlachos HE, Derby CA, et al. Menopausal Vasomotor Symptoms and Risk of Incident Cardiovascular Disease Events in SWAN. Journal of the American Heart Association. February 2021.
  • Here’s What Happens When You Don’t Get Enough Sleep (and How Much You Really Need a Night). Cleveland Clinic. March 25, 2022.
  • Augoulea A, Moros M, Lykeridou A, et al. Psychosomatic and Vasomotor Symptom Changes During Transition to Menopause. Menopause Review. June 2019.
  • Hot Flashes: Diagnosis and Treatment. Mayo Clinic. May 20, 2022.
  • Hormone Therapy: Is It Right for You? Mayo Clinic. December 6, 2022.
  • Nam E, Park J, Lee J, et al. Traditional Acupuncture for Menopausal Hot Flashes: A Systematic Review and Meta-Analysis of Randomized, Controlled Trials. European Journal of Integrative Medicine. January 2018.
  • Hot Flashes. Cleveland Clinic. March 21, 2022.
  • Desmawati D, Sulastri D. Phytoestrogens and Their Health Effect. Open Access Macedonian Journal of Medical Sciences. February 2019.
  • Herber-Gast GC, Mishra GD. Fruit, Mediterranean-Style, and High-Fat and -Sugar Diets Are Associated With the Risk of Night Sweats and Hot Flushes in Midlife: Results From a Prospective Cohort Study. The American Journal of Clinical Nutrition. May 2013
  • Smith RL, Flaws JA, Gallicchio L. Does Quitting Smoking Decrease the Risk of Midlife Hot Flashes? A Longitudinal Analysis. Maturitas. September 2015.
  • Saccomani S, Lui-Filho JF, Juliato CR, et al. Does Obesity Increase the Risk of Hot Flashes Among Midlife Women? A Population-Based Study. Menopause. September 2017.
  • Innes KE, Selfe TK, Vishnu A. Mind-Body Therapies for Menopausal Symptoms: A Systematic Review. Maturitas. June 2010.
  • Menopausal Symptoms: In Depth. National Center for Complementary and Integrative Health. May 2017.
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