Hot Tubs In Pregnancy: Are They Safe To Use?

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Pregnant women may often experience body aches. To curb and manage these symptoms, women may consider indulging in a hot shower or soak themselves in a warm water tub. However, pregnant women may wonder if it is safe to use hot tubs in pregnancy. Read this post to learn about the safety, benefits, and side effects of hot water bathing in pregnancy.

Is It Safe To Take A Hot Water Bath During Pregnancy?

It is safe to take a hot water bath during pregnancy if the water is not too hot. In general, health experts recommend pregnant women to avoid hot water as it elevates body temperature, which could be risky for the baby.

Also, hot water baths are not safe when you have vaginal bleeding or ruptured membranes. To prevent burns on the skin, test the water temperature with your wrist or forearm and see if you are comfortable with it.

Also, if the water is too hot, it can increase your body temperature to above normal.

What Temperature Should The Bath Water Be For A Pregnant Woman?

The water should ideally be between 92°F/ 33°C and 98°F/ 36.3°C

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The water should ideally be between 92°F/ 33°C and 98°F/ 36.3°C, i.e., warm or tepid.

Also, your body temperature should not go above 102.2°F or 38.9°C when you are in a bathtub filled with hot water (1). If the temperature crosses this limit, it can lead to the following complications for you and your baby.

  • Drop in blood pressure levels, which can deprive oxygen supply to the fetus
  • Weakness and dizziness
  • Birth defects in the first trimester

So, it is best to avoid hot tubs, saunas, Jacuzzi and steam baths that can increase your body temperature quickly, during pregnancy.

What Are The Side Effects Of A Hot Water Bath During Pregnancy?

A hot bath can increase your core body temperature, which can be dangerous for the baby as well.

  1. In the first trimester, a hot water bath can affect the brain and spinal cord development of the fetus, leading to neural tube defects such as spina bifida (2).
  1. It may also caise dehydration and unconsciousness (3).
Hot water bath may cause unconsciousness.

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Is it safe to use saunas, Jacuzzis and hot tubs in pregnancy?

No, it is better to avoid sauna or Jacuzzi as they are likely to increase the risks of dehydration, overheating and fainting.

  1. Women usually tend to feel warmer during pregnancy due to hormone changes and increased blood circulation. Additional rise in the temperature when in a sauna or Jacuzzi can up the temperature to a risky level.
  1. Hot jets from the Jacuzzi will alter the blood circulation, and the pressure can strain your baby.
Hot jets from the Jacuzzi will alter the blood circulation

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  1. Steam from the sauna increases your core temperature and may increase the risk of fetal heart anomalies (4).
  1. Extremely hot water in the bath could lead to exhaustion, dizziness, and dehydration.
  1. The high temperatures in the tub can shock the body system and lead to a miscarriage or premature labor.

Can A Hot Bath Cause A Miscarriage During Early Pregnancy?

A hot water bath during early pregnancy could result in a miscarriage, and the risk is higher when you have frequent hot water baths with very hot water (5).

However, further studies are required to find a concrete association between the duration and frequency of showering in the early stages of pregnancy and miscarriage or congenital disabilities in the baby.

Meanwhile, a bath in reasonably hot water can be beneficial to you during pregnancy.

Benefits Of Hot Water Bath During Pregnancy

A warm water bath can be physically and mentally relaxing during pregnancy

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A warm water bath can be physically and mentally relaxing during pregnancy (6) and offers the following benefits.

  1. Soothes tired muscles and relaxes the tense muscles that are stressed due to weight gain during pregnancy.
  1. Eases premature contractions, and reduces swelling (edema) around the legs, ankles, and feet.
  1. Relieves pain, and hence several mothers use it for pain relief during labor.
  1. A warm bath before bedtime induces sound sleep and helps fight pregnancy insomnia.
  1. Warm baths, along with essential oils, relax the body and nurture the skin, thereby providing relief from cramps.
  1. Soaking in a tub of warm water mixed with rock salt helps relax the muscles and improves the amniotic fluid levels (7).

Can You Use A Hot Tub When Pregnant?

No. Use of hot tubs is not recommended during pregnancy as it can increase the core body temperature and affect fetal development. In the first trimester, it might lead to neural tube defects and miscarriage, and later cause dehydration in moms (2).

Hot Tubs vs. Hot Baths: What Is Safe During Pregnancy?

A hot water bath can impose risks

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A hot bath is safer than a hot tub, as the water in the bath cools down quickly whereas the water temperature remains hot in a tub. Also, in a hot bath, your upper body is out of the water as opposed to a hot tub where you submerge entirely.

That said, a hot bath will also pose risks if the water is too hot and the duration of the bath is too long. Try to monitor and maintain a safe body temperature to avoid the risks of a hot bath.

Is It Safe To Try A Hot Bath To Induce Labor?

A warm bath is relaxing and a better option to induce labor (8). But if the water is too hot, your baby will feel hotter and stressed inside.

So, test the water by putting your forearm or elbow in it. If your skin becomes inflamed or starts to sweat, the water is probably very hot.

You may use warm or tepid water for a bath during pregnancy. If you enjoy indulging in hot showers to soothe yourself, you may want to continue it during pregnancy too. You could do so, provided your water temperature is not too high. Note that it is better you avoid using hot tubs in pregnancy to safeguard yourself and your unborn from the risk of complications. Also, experts suggest that a very hot bath is not advisable during pregnancy as it could increase your core body temperature and pose a risk of adverse outcomes for you and your fetus.

Frequently Asked Questions

1. What happens if a pregnant woman uses a hot tub?

Hormonal changes and increased blood supply can cause pregnant women to feel warmer than usual. Since the body cannot lose heat effectively in hot tubs by sweating, the core temperature increases. Thus, hot tubs can cause overheating, dehydration, and fainting in pregnant women. A significant rise in body temperature may also harm fetal development (1).

2. When should you avoid using a hot tub?

Hot tub use is not recommended for women who are pregnant or actively trying to conceive. You may use it for short periods at a low water temperature if you want to use hot tubs during pregnancy (2).


MomJunction's articles are written after analyzing the research works of expert authors and institutions. Our references consist of resources established by authorities in their respective fields. You can learn more about the authenticity of the information we present in our editorial policy.
  1. M A Harvey et al.; (1981); Suggested limits to the use of the hot tub and sauna by pregnant women.
  2. 5 Ways to Lower the Risk of Having a Pregnancy Affected by a Neural Tube Defect.
  3. Is it safe to use a sauna or jacuzzi if I’m pregnant?.
  4. Saunas/hot tubs.–pregnancy/Saunashot-tubs/
  5. AJ Agopian et al.; (2013); A case–control study of maternal bathing habits and risk for birth defects in offspring.
  6. Yasuaki Goto et al.; (2018); Physical and Mental Effects of Bathing: A Randomized Intervention Study.
  7. Can Pregnant Women Take Baths?.
  8. Elizabeth R Cluett and Ethel Burns; (2009); Immersion in water in labour and birth.
  9. Is it safe to use a sauna or jacuzzi if I’m pregnant?.
  10. Is it OK to use a hot tub during early pregnancy?.
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Rebecca Malachi

Rebecca is a pregnancy writer and editor with a passion for delivering research-based and engaging content in areas of fertility, pregnancy, birth, and post-pregnancy. She did her graduation in Biotechnology and Genetics from Loyola Academy, Osmania University and obtained a certification in ‘Nutrition and Lifestyle in Pregnancy’ from Ludwig Maximilian University of Munich (LMU). She has been into health and...
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Lucy Mendelssohn

Lucy is a childbirth and postpartum mentor, doula, and advocate. She works in Sydney with families as they prepare for childbirth and postpartum, facilitates an Arts’n’Bubs parents’ group, and provides in-home care for new mothers.  A mother of two, Lucy advocates better postpartum care in the mainstream systems and is connected to a worldwide network of doulas and postpartum professionals....
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