Pregnancy And Night Sweats


Did you know that up to 35% of pregnant women experience night sweats during pregnancy? These sudden episodes of sweating can be a surprise and are often a cause for concern. But rest assured, you are not alone in this, and there is valuable information to help guide you through this common-yet-often misunderstood experience during pregnancy.

In this article, we aim to provide you with a deeper understanding relationship between pregnancy and night sweats. By shedding light on this topic, we hope to help you navigate this aspect of pregnancy with confidence and peace of mind.

Together, we will explore the background information on pregnancy and night sweats, delve into the symptoms and diagnosis process, discuss various treatment and management approaches, examine potential complications and long-term effects, and share prevention and coping strategies.

🛌⚠️ Women: Night sweats can have many causes. Read out complete overview of the topic on the Causes of Night Sweats in Women: Triggers, Remedies, and FAQs

II. Overview of Night Sweats during Pregnancy

Night sweats are reported by a number of pregnant women. While specific prevalence rates are not currently available, these symptoms often occur alongside the hormonal and metabolic changes of pregnancy. In general, night sweats can appear at any stage of pregnancy but may be more common in the third trimester and the postpartum period due to significant hormonal changes and fluid shifts occurring in the body.

III. Causes of Night Sweats during Pregnancy

Several physiological changes that occur during pregnancy contribute to the occurrence of night sweats:

A. Hormonal Changes

  1. Estrogen and Progesterone Fluctuations: Hormones play a significant role in causing night sweats during pregnancy. The important regulators of our body, estrogen and progesterone, can push the body temperature into the hot zone, leading to sweating as the body tries to dissipate the extra heat. This is often a result of sudden or drastic hormonal or metabolic changes during pregnancy.
  2. Effects on Temperature Regulation: The fluctuation in estrogen and progesterone can impact the body’s temperature regulation, causing an increase in heat dissipation and hence sweating.

B. Increased Metabolism

  1. Higher Energy Demands during Pregnancy: Pregnancy increases the body’s metabolic demands, which can contribute to increased body heat and sweating.
  2. Role in Heat Production: The body’s metabolism, controlled significantly by thyroid hormones, also contributes to night sweats. Thyroid hormones, responsible for regulating metabolism and body temperature, increase during the first trimester. This increase can lead to feelings of overheating, especially during sleep, and potentially contribute to night sweats.

C. Circulatory Changes

  1. Increased Blood Volume and Flow: Pregnancy leads to substantial circulatory changes, which can contribute to night sweats. A pregnant woman’s blood plasma volume increases significantly, by up to 60 percent by the end of the third trimester. This results in dilation of blood vessels to deliver more blood to the skin’s surface, which can lead to a sensation of being warmer and potentially contribute to night sweats.
  2. Impact on Body Temperature: The increased blood flow to the skin’s surface may interfere with the body’s normal mechanism for decreasing core body temperatures in sleep, potentially contributing to night sweats.

D. Additional Factors

Anxiety, stress, and environmental factors such as room temperature and bedding can also play a role in the occurrence of night sweats during pregnancy.

IV. Effects and Risks of Night Sweats during Pregnancy

Night sweats during pregnancy can lead to several potential effects and risks:

A. Impact on Sleep Quality

Night sweats can disrupt sleep, leading to fatigue and a decrease in overall well-being. Ensuring good sleep hygiene is important during pregnancy, both for the health of the mother and the developing fetus.

B. Dehydration

Excessive sweating at night can potentially lead to dehydration, especially if fluid intake is not sufficiently increased. Dehydration can have several negative effects during pregnancy, including increasing the risk of cramps, constipation, andpreterm labor.

C. Infections

Excessive sweating can create a moist environment that may increase the risk of certain skin infections. Maintaining good hygiene is therefore crucial.

V. Management and Prevention Strategies

Several strategies can help manage and prevent night sweats during pregnancy:

A. Sleep Environment Modifications

  1. Cool and Well-Ventilated Environment: Keeping the sleep environment cool and well-ventilated can help regulate body temperature and reduce night sweats. Using a fan or air conditioning, if available, can be beneficial.
  2. Appropriate Bedding: Using breathable, moisture-wicking bedding and nightwear can help manage sweating and keep the body cool.

B. Lifestyle Changes

  1. Hydration: Adequate fluid intake is essential to replace the fluids lost through sweating. Keeping a glass of water by the bed can be helpful.
  2. Nutrition: Maintaining a balanced diet can help ensure the body is getting the necessary nutrients to manage the physiological changes of pregnancy.
  3. Stress Management: Techniques such as deep breathing, yoga, and meditation can help manage stress and potentially reduce night sweats.

C. Medical Interventions

If night sweats are severe or causing significant distress, a healthcare provider should be consulted. They may recommend certain medications or other interventions to help manage the symptoms.

VI. When to Seek Medical Help

While night sweats are generally not a cause for concern during pregnancy, medical help should be sought if they are associated with other symptoms such as fever, chills, unexplained weight loss, or persistent cough. These could be signs of an underlying medical condition that needs to be addressed.

VII. Frequently Asked Questions

  1. When do pregnancy night sweats start?

    Pregnancy night sweats can start as early as the first trimester but are more common in the second and third trimesters.

  2. When should I be concerned about night sweats during pregnancy?

    Be concerned if night sweats are accompanied by fever, chills, weight loss, or difficulty breathing, as these may indicate an underlying health issue.

  3. How long do pregnancy night sweats last?

    Pregnancy night sweats typically last throughout the pregnancy, but can continue for several weeks postpartum as hormones readjust.

  4. How can I stop night sweats during pregnancy?

    To stop or alleviate night sweats, maintain a cool sleep environment, wear breathable clothing, stay hydrated, and avoid triggers such as spicy foods or caffeine.


In summary, pregnancy night sweats are a common and often misunderstood experience affecting 10-35% of pregnant women, particularly during the first and third trimesters.

It is important to remember that pregnancy night sweats are manageable, and focusing on self-care and good communication with healthcare providers can lead to a healthier, more comfortable pregnancy experience. If you are dealing with night sweats during your pregnancy, don’t hesitate to reach out to your healthcare provider for guidance and support.

Medical Disclaimer: This article is for informational purposes only and should not be considered professional medical advice. It is always recommended to consult with a healthcare professional before making any changes to your treatment plan, diet, or lifestyle. is not responsible for any actions taken as a result of the information provided in this article.


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  2. Sleep Foundation – Postpartum Night Sweats: Causes & Management
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