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Pregnancy and thrush


Thrush in pregnancy - HSE.ie

Thrush is an inflammation of the vagina and vulva (outer parts of the genitals). It is caused by a type of yeast called Candida.

Pregnancy increases your risk of getting thrush.

Thrush is uncomfortable, but it won't cause any long term harm to you and won't harm your baby.

Symptoms of thrush

Symptoms of thrush include:

  • itching and soreness of your vulva and vagina
  • vaginal discharge - this is usually thick and white
  • pain during sex
  • stinging when you urinate
  • red, cracked and inflamed skin on your vagina and vulva

Diagnosing thrush

Visit your GP if you think you have thrush.

Your GP may need to examine you and may need to do a test to see if you have thrush. During this test, a long cotton bud will be inserted into your vagina to collect a sample of any discharge.

Most doctors will use a “speculum” to make collecting a sample easier. This is a device that is inserted into the vagina to open your cervix.

The sample will be sent to a lab to be tested.

This test doesn't usually hurt, but it's uncomfortable. It won't harm your baby.

Treatment of thrush

Talk to your GP about treatment for thrush. Do not buy treatments over the counter.

If you buy medicine without a prescription from your GP, always tell the pharmacist that you are pregnant.

Your GP may prescribe an anti-fungal cream. These creams are safe to use during pregnancy. Pregnant women with thrush should use the cream for at least 7 days.

Always wash your hands before and after using anti-fungal creams.

Your doctor may also prescribe a “pessary”. Pessaries are tablets that are inserted into your vagina.

Tablets for thrush taken by the mouth are not recommended during pregnancy.

You can prevent thrush and reduce the symptoms by:

  • wearing loose clothes and cotton underwear
  • avoiding perfumed soaps
  • never using douches or deodorants on your vagina
  • washing your genitals using an emollient soap - ask your pharmacist about emollient soaps
  • patting your vagina and vulva dry after washing
  • using condoms during sex to stop the thrush spreading to your partner
  • using non-perfumed panty liners or sanitary pads
  • changing out of damp swimwear or sweaty sports gear as soon as possible

Page last reviewed: 17 May 2019
Next review due: 17 May 2022

Vaginal thrush during pregnancy | Pregnancy Birth and Baby

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Most women experience occasional bouts of a common yeast infection known as vaginal thrush. It causes itching, irritation and swelling of the vagina and surrounding area, sometimes with a creamy white cottage cheese-like discharge.

Vaginal thrush is fairly harmless, but it can be uncomfortable and it can keep coming back, which is known as recurrent thrush.

Thrush is a yeast infection, usually caused by a yeast-like fungus called 'Candida albicans'.

Many women have Candida in their vagina without it causing any symptoms. Hormones in vaginal secretions and 'friendly' vaginal bacteria keep the fungus under control. Problems arise when the natural balance in the vagina is upset and Candida multiplies.

Vaginal thrush can sometimes be passed on during sex but is not considered a sexually transmitted infection (STI). However, if you have thrush it’s best to avoid having sex until you’ve completed a course of treatment and the infection has cleared up.

During pregnancy

You are more at risk of getting thrush while you're pregnant. Changes in the levels of female hormones, such as oestrogen, increase your chances of developing thrush and make it more likely to keep coming back.

There is no evidence that thrush affects your chances of getting pregnant.

If you're pregnant or breastfeeding and you have thrush, you should avoid taking oral anti-thrush treatments. Instead, use vaginal pessaries, plus an anti-thrush cream if necessary. 

Treatment

If you have thrush and you're pregnant or breastfeeding, you should always visit your doctor rather than buying anti-thrush medication over the counter from a pharmacy.

You won’t be prescribed oral treatment because it may affect your baby. An anti-thrush pessary, such as clotrimazole, nystatin or miconazole will probably be prescribed to be used for about 3 to 7 days.

If you're pregnant, take care when inserting a pessary because there's a risk of injuring your cervix (neck of the womb). To reduce the risk, it may be better to insert the pessaries by hand instead of using the applicator.

If you have symptoms around your vulva, such as itching and soreness, you may also be prescribed an anti-thrush cream.

Not all of these products are safe to use at different stages of pregnancy, so it's important to talk to your doctor and pharmacist before using any products.

What can I do to prevent vaginal thrush? 

There are a number of simple things you can do:

  • Wear cotton or silk underwear rather than synthetics and change daily. Wear tights or stockings for as short a time as possible.
  • Wash underwear in hot water and pure soap and double rinse to make sure any irritants are removed before you wear them.
  • Change out of damp swimming costumes or sports clothes as soon as possible after swimming or exercise.
  • If using pads, change them regularly and avoid perfumed or deodorised pads.
  • Avoid tight fitting clothes such as jeans as this creates a moist, warm environment that encourages the overgrowth of bacteria and yeasts.
  • Never douche — except if it is specifically prescribed by a doctor to treat an infection. Douching increases your risk of vaginal irritation and is not recommended during pregnancy. A healthy vagina does not need a vaginal deodorant.
  • Avoid using soaps, bubble baths, bath salts, perfumes and perfumed talcs around the vaginal area. And never ever use anything harsh such as disinfectants — even diluted, near your vagina.
  • A gentle moisturiser like aqueous cream may be advised. Use water or soap substitutes to wash the area.
  • Always wipe from the front to the back after going to the toilet since this stops bowel organisms being swept into the vagina. Don’t use perfumed toilet paper because it can cause irritation.

Sources:
Mater Mother’s Hospital (Pregnancy – information for women and families), MotherSafe: NSW Medications in Pregnancy and Breastfeeding Service (Thrush in pregnancy), Women and Children’s Health Network (Common health problems in pregnancy – vaginal thrush)

Learn more here about the development and quality assurance of healthdirect content.

Last reviewed: November 2020


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Thrush | SA Health

Thrush or Candidiasis is a common vaginal infection, caused by an overgrowth of yeasts and is not considered to be a sexually transmitted infection