Expert advice and medical guidance: Is it safe to use a hot water bottle during pregnancy?

Pregnant woman holds a hot water bottle against her back

by Sophie Knight |
Updated on

There’s nothing quite like cosying up with a hot water bottle to soothe aches, pains and common pregnancy symptoms that might develop during your pregnancy. It's a known fact that heat from a hot water bottle can act as pain relief as it can relax your muscles, improve blood flow and keep the cold away. However, are hot water bottles safe in pregnancy?

For expert advice, we consulted Dr Suzanne Wylie, a GP and medical adviser for IQdoctor, who provided medical guidance on the safe use of hot water bottles during pregnancy. Additionally, we've put together a list of recommended hot water bottles that are safe for use during pregnancy. We know many mums-to-be have crucial questions, like "will the heat affect my baby?" or "can a hot water bottle cause a miscarriage?". We'll address these concerns directly, providing you with all the information you need to feel completely reassured and comfortable.

Best hot water bottles for pregnancy:

Can you use a hot water bottle when pregnant?

"Yes, using a hot water bottle during pregnancy is generally considered safe as long as it is used with care," according to Dr Suzanne. "Many women find them helpful in easing common pregnancy discomforts pregnancy back pain or abdominal cramps, particularly during the earlier stages. However, it is important not to place a hot water bottle directly onto the skin. Always use a cover or wrap it in a towel to prevent burns. It is also advisable to use warm rather than very hot water, as excessive heat can pose a risk, especially in the first trimester when the developing baby is most vulnerable."

Are there any risks using a hot water bottle when pregnant?

While a hot water bottle offers some much-needed comfort when the aches and pains get a little unbearable, there are still some personal risks to be aware of. We're talking about minor burns, the danger of water leaking onto an electric blanket, and the potential for overheating as Dr Suzanne notes. "The main concern when using a hot water bottle in pregnancy is the potential for overheating."

During pregnancy, increased blood volume can already make you feel much warmer than usual, even without added heat! So, understanding precisely how to use a hot water bottle safely is essential.

"Prolonged exposure to intense heat, particularly around the abdomen or lower back, may affect blood flow or raise the body’s core temperature, which could increase the risk of complications early in pregnancy. It is also important not to fall asleep with a hot water bottle on the body, as this could lead to accidental burns or excessive heat exposure," she adds.

How to use a hot water bottle safely during pregnancy

"To use a hot water bottle safely during pregnancy, avoid placing it directly over the bump," advises Dr Suzanne. "It is safer to use it on areas like the lower back or feet for comfort. Make sure the water is not boiling and always check the bottle for leaks before use. Limit each use to around fifteen to twenty minutes."

The NHS offer similar advice, saying you can use a hot water bottle when pregnant – "as long as it’s got a cover on it, and not too hot." They advise using it on your "back muscles or in your pubic area, or over your hips."

Guide: How to use a hot water bottle safely

Whether you’re pregnant or not, you should always follow these safety rules when using a hot water bottle:

• Always use a cover to avoid burning.

• Check your bottle before each use for any tears or damage. If you spot any, replace it.

• Ensure the lid fits on securely and that there are no leaks.

• Let any boiling water cool a little before pouring it into a bottle to avoid tearing.

• Only fill to three-quarters full to avoid overfilling.

• Never use a hot water bottle at the same time as an electric blanket, in case of spillage.

• If sleeping with your bottle, avoid lying or sitting on top of it so it doesn't burst.

Safety tips: Using a hot water bottle during pregnancy

While using a hot water bottle can bring comfort, there are a few key things to keep in mind to ensure it's safe and effective.

When to use – Hot water bottles can be particularly helpful for relieving pain in areas like your lower back, hips, and bottom. They can also assist in easing muscle tension, especially in your paraspinal muscles.

How to use – "Make sure the water is not boiling and always check the bottle for leaks before use" Dr Suzanne notes. It's also important to cover it, so wrapping it in a towel is a good way to add extra protection. You can apply the heat for about 10 to 15 minutes, but make sure to listen to your body and stop if you feel too warm.

What to avoid – Avoid placing the hot water bottle directly on your belly, as this could lead to excessive uterine congestion and even premature contractions. Also, it’s best to refrain from using heat during the first trimester (0 to 12 weeks of pregnancy).

Other safety tips – Make sure the room is well-ventilated, and always keep a glass of water nearby. It’s also important not to layer too many clothes or blankets while using the hot water bottle, as overheating can cause discomfort. If you begin to feel too hot, remove the hot water bottle and cool down.

The best hot water bottle for pregnancy

Best hot water bottle overall

hot-water-bottle-pregnancy - Samply Transparents 2L Hot Water Bottle with Knited CoverImage: Amazon

With a transparent water bottle, you'll clearly be able to see how much water is in it so that you don't overfill it. Not to mention, it also comes with a knitted cover that's got nine different colours to choose from! Sure to keep you cosy, snug and safe.

Pros

  • Transparent so you can see the water level
  • Different colour options to choose from
  • Flexible bottle

Cons

  • Advised not to use boiling hot water in this bottle
  • Flexibility means the bottle isn't as sturdy

Best highly rated hot water bottle

Hot water bottle for pregnancy - Revitale Faux Fur Pom Pom Hot Water BottleImage: Amazon
Price: $14.99

This one is a great choice if you're wanting to snuggle up on the couch and get cosy! With a thick faux fur cover, it'll provide plenty of protection against your skin. It's also available in a few different colour choices and is a brilliant budget option.

Pros

  • Affordable
  • Soft fluffy cover provides good protection
  • Colour choices available 

Cons

  • Difficult to get the bottle out of its cover

Best long hot water bottle

hot-water-bottle-pregnancy - Homealexa Long Hot Water BottleImage: Amazon

This hot water bottle is ideal for cuddling up thanks to its soft cover. Its durability means you can hug it for hours on the sofa or in bed. A full body hot water bottle is perfect for those days when you're needing a chill day.

Pros

  • Body length pain relief
  • Thick cover provides good protection
  • Stays warm for a long period

Cons

  • Have to be especially wary of leaks

4.

Hot Water Bottle Wrap

Best hot water bottle for all the family

hot-water-bottle-pregnancy Hot Water Bottle WrapImage: Amazon

An adorable koala bear inspired wrap is perfect for the whole family to use. With a thick protective pouch, it's a safe way to get some pain relief or cuddle up. The great thing is that the design is perfect for kids too.

Pros

  • Wraps around your body
  • Thick cover provides good protection
  • Cute koala cover

Cons

  • Small sizing

Best wrap around hot water bottle

Similarly, this popular YUYU hot water bottle can be used as a wrap over your shoulders (not the belly) or as a long hot water bottle for curling up in bed with. Ideal for days when you're feeling those aches and pains, as it feels like a warm hug. Such a versatile option and always there whenever you need it!

Pros

  • Fantastic reviews
  • Wraps around your body
  • Thick cover provides good protection

Cons

  • Tie around the back may be awkward
  • Not suitable around the belly for pregnant women 

Best verstaile hot water bottle

hot-water-bottle-pregnancy Hot Water Bottle PouchImage: Amazon

Another hot water bottle that can be wrapped around your lower back or neck when you need to relieve some tension, or warm yourself up on a cold winter's evening. With multiple covers, use as a regular hot water bottle or as a wrap around when you feel like it.

Pros

  • Different options to choose from
  • Wraps around your body
  • Thick cover provides good protection

Cons

  • Small sizing

Best microwavable heat pack

hot-water-bottle-pregnancy Heat Pack Cotton Tartan Microwave Wheat BagImage: Amazon
Price: $12.56

As an alternative to a hot water bottle, this microwavable heat pack could do the trick. While like every heated item, you should treat them with caution, a microwavable heat pack doesn't come with the risk of bursts, spillages or hot water burns. Just pop it in the microwave and place it around the area causing you discomfort for relief.

Pros

  • No hot water required
  • Safe and easy to use
  • Slow and steady heat

Cons

  • May not stay as hot for a long period of time

Alternative ways to manage pregnancy aches and pains

"If a hot water bottle is not suitable or you would prefer an alternative, there are several other options that can help relieve discomfort," Dr Suzanne says. These include the following:

Microwaveable wheat bags - "These are a popular choice but should also be used carefully and not overheated," advises Dr Suzanne.

Massage – if you're lucky enough to have a partner who can give you a good rub, then pregnancy massage is a great way to relieve tension and relax you. It'll also help to warm you up if you're feeling chilly, as long as his hands aren't too cold and he warms up the oil in his hands before applying it to your body! Alternatively, you can look up professional services, just let them know you're pregnant before you book.

Warm bath - "This can be soothing but should be kept at a comfortable temperature, no higher than around thirty-six to thirty-seven degrees Celsius. A warming bath when pregnant, or even a shower can do wonders to soothe aches and pains, especially with some pregnancy-safe bubble bath, essential oils or a calming scented candle.

Pregnancy pillows - You don't have to use pregnancy pillows, ordinary pillows and cushions will do, but pregnancy pillows are designed to support your body and bump in bed or when relaxing on the sofa, and take the strain off tired muscles.

Gentle exercise - While it might seem counterintuitive, exercise during pregnancy can actually help to reduce strains and strengthen your body to carry your bump as it grows. Go for gentle activities like walking or swimming. Pregnancy yoga is popular too.

FAQ: Using a hot water bottle while pregnant

Can heat affect the baby during pregnancy?

One of the main worries for pregnant women is whether the heat from a hot water bottle will affect their baby. Don’t worry, your baby won’t be able to feel the warmth from it, as long as you follow safety recommendations. You would be amazed at how much protection there is, thanks to the layers between the hot water bottle and your baby. It's still important to ensure that your hot water bottle is covered and not piping hot, that you don't place it directly on your belly, and that you limit the time spent with it to no longer than 15 minutes.

Can a hot water bottle cause miscarriage?

There's enough medical research to tell us that overheating during pregnancy can put your baby at risk – however, using a hot water bottle is unlikely to raise your core body temperature to the level that would be harmful for your baby, especially if you are following the recommended guidelines above and those provided by other experts and your GP on how to safely use a hot water bottle when pregnant. The main things are not to place the hot water bottle directly on your belly, ensure it's covered, not leaking and is not piping hot. Limit to using it for under 15 minutes.

Does a hot water bottle help back pain?

Yes, it is well-known that applying heat is effective in helping to relieve back pain, and the same is true during pregnancy. Using a hot water bottle for back pain during pregnancy can be useful as it increases blood flow and promotes relaxation, which reduces any pain and stiffness you may be experiencing.

Should I use a hot water bottle for abdominal pain when pregnant?

While abdominal pain is common during pregnancy due to hormonal changes, ligament stretching and digestive issues, it's important to seek medical advice if the pain is severe or persistent, or accompanied by other symptoms. You can use a hot water bottle for cramps during pregnancy; however, be cautious about applying the heat directly to your belly. You shouldn't use a hot water bottle on stomach during pregnancy – instead, you may consider laying the bottle beside you underneath a cover to benefit from the overall warmth generated, or hold it against your hip, back or thighs. The bottle should never be too hot, though, and make sure to use a cover.

About the expert

Dr Suzanne Wylie is a GP and medical adviser for IQdoctor. She is passionate about health and well-being and has over 10 years' experience as a doctor working in both the private sector and continues to also work within the NHS.

About the author

Sophie Knight is a journalist and mum of two, and previously edited motherandbaby.com before moving on to write about family cars for Parkers.co.uk. Sophie went on to become Commercial Content Editor for M&B, Closer, Heat, Empire, and Yours before deciding to dedicate more of her time to her family and write freelance.

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Mother & Baby is dedicated to ensuring our information is always valuable and trustworthy, which is why we only use reputable resources such as the NHS, reviewed medical papers, or the advice of a credible doctor, GP, midwife, psychotherapist, gynaecologist or other medical professionals. Where possible, our articles are medically reviewed or contain expert advice. Our writers are all kept up to date on the latest safety advice for all the products we recommend and follow strict reporting guidelines to ensure our content comes from credible sources. Remember to always consult a medical professional if you have any worries. Our articles are not intended to replace professional advice from your GP or midwife.