What causes hot flashes during pregnancy?

Medical Advisory BoardAll articles are reviewed for accuracy by our Medical Advisory Board
Educational purpose only • Exercise caution as content is pending human review
Article Review Status
Submitted
Under Review
Approved

Last updated: March 19, 2025View editorial policy

Personalize

Help us tailor your experience

Which best describes you? Your choice helps us use language that's most understandable for you.

From the Guidelines

Hot flashes during pregnancy are primarily caused by hormonal fluctuations, particularly the increase in estrogen levels, which can lead to increased blood flow and higher body temperature. To manage hot flashes during pregnancy, several lifestyle modifications can be beneficial, including:

  • Wearing lightweight, breathable clothing in layers that can be removed as needed
  • Keeping the environment cool by using fans or air conditioning
  • Staying hydrated by drinking plenty of water throughout the day
  • Taking cool showers or using cold compresses on the neck, wrists, or forehead when feeling overheated
  • Practicing deep breathing exercises when a hot flash begins
  • Avoiding known triggers such as spicy foods, caffeine, and alcohol
  • Engaging in regular physical activity to help regulate body temperature, but avoiding exercising in hot conditions 1. It is essential to note that while medications like hormone therapy are typically used for menopausal hot flashes, they are not recommended during pregnancy due to potential risks to the fetus. If hot flashes are severe or accompanied by other concerning symptoms like dizziness, chest pain, or difficulty breathing, it is crucial to contact a healthcare provider promptly, as this could indicate an underlying condition requiring medical attention.

From the Research

Causes of Hot Flashes During Pregnancy

There are no research papers provided that directly address the causes of hot flashes during pregnancy.

Related Information on Hot Flashes

  • Hot flashes are a common symptom experienced by many women, with up to 75% of women experiencing them 2.
  • The physiology of hot flashes is not definitively understood, making it challenging to identify effective treatments 2.
  • Nonhormonal medications and complementary therapies are used to treat hot flashes, with selective serotonin reuptake inhibitors (SSRIs), serotonin norepinephrine reuptake inhibitors (SNRIs), and gabapentin showing robust evidence for hot flash reduction 3.
  • Omega-3 fatty acid supplementation has been shown to reduce hot flash frequency and improve hot flash score in middle-aged women 4.

Treatment Options for Hot Flashes

  • Citalopram, an SSRI, has been found to be an effective and well-tolerated treatment for hot flashes in several studies 2, 5.
  • Omega-3 fatty acid supplementation, particularly with ethyl-eicosapentaenoic acid (E-EPA), has been shown to reduce hot flash frequency and improve quality of life in middle-aged women 4.

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

Have a follow-up question?

Our Medical A.I. is used by practicing medical doctors at top research institutions around the world. Ask any follow up question and get world-class guideline-backed answers instantly.