Canestest Self-Test for Vaginal Infections



If you’re unsure if you have bacterial vaginosis or thrush, we’ll help you to take control and diagnose yourself in just 10 seconds. We’ve developed an innovative and reliable self-test so you can determine which vaginal infection you are suffering from and treat it quickly and effectively. You only need to use a simple swab and a colour change will indicate reliably whether you are suffering from thrush or bacterial vaginosis.

Canestest: Confidence to choose the right treatment for you

Dealing with vaginal infections can make you feel less confident and less in control of your body, not to mention uncomfortable. Canestest allows you independently diagnose yourself in the comfort of your home, quickly giving you results that are over 90% accurate. It’s a new and innovative solution that will put you back in control of your intimate health and give you the ability to choose the treatment you need to effectively deal with your infection.

Thrush vs. Bacterial Vaginosis vs. Trichomoniasis

While both thrush and bacterial vaginosis (BV) are very common, they’re two different types of infections and you need to treat them differently. However, they are not always known and not always easy to identify. Thrush is caused by an overgrowth of the yeast (candida albicans) which often leads to symptoms such as itchiness, soreness or a white discharge. BV is caused by an overgrowth of bacteria regularly found in your vagina. BV symptoms usually include a fishy odour and a greyish-white, watery discharge. Trichomoniasis is considered to be the most common curable sexually transmitted disease caused by infection with a protozoan parasite called Trichomonas Vaginalis and can sometimes present with symptoms of unusual frothy green/yellow discharge with an unpleasant odour and itching/ burning of the vagina. With Canestest, you can test before you treat so you know you’re using the right treatment for your infection.

What is Canestest?

Canestest is a convenient self-test that helps you to find out whether you’re likely to suffer from thrush or BV and also guides you to choose the right treatment. This technological breakthrough allows you to regain control of your intimate health- it’s over 90% accurate and it only takes 10 seconds to receive your diagnosis. The test itself is a simple, easy to use swab that changes colour indicating which vaginal infection you’re likely to suffer from.

How does Canestest work?

Your vagina normally has an acidic pH level- this keeps the good and bad bacteria that live in your healthy vagina in check. Any changes to your vaginal pH balance can cause and can also be an indication of vaginal infections such as BV. Canestest tells you if you have a relevant pH shift in your vagina and helps you to understand and diagnose the type of vaginal condition you’re likely to suffer from. A higher vaginal pH indicates that you may be suffering from BV while a normal vaginal pH means your symptoms are probably caused by thrush. Canestest has over 90% accuracy unlike a regular pH test, which wrongly diagnoses 1 out of 4 cases.

How do you use Canestest?

It’s easy and straightforward to use Canestest at home, in fact it’s similar to inserting a tampon and it shouldn’t cause you any discomfort. To get the most accurate results you need to make sure you don’t use Canestest less than one day before or after your period or if you have any signs of your period or vaginal bleeding. You also need to allow 12 hours after having sexual or vaginal douching.



Unwrap the Canestest swab (make sure the swab tip does not come into contact with anything before you insert it into your vagina)


Hold the Canestest swab by the handle and insert the yellow tip into your vagina, rotate the swab and then remove


After 10 seconds check the tip of the Canestest swab to see if the colour has stayed the same or changed to blue or green

How to interpret the Test results?

No colour change/remains yellow (Negative result)

If your Canestest swab didn’t change colour after 10 seconds, it means that you may be suffering from thrush. If you have symptoms such as an itchy or sore vagina, or thick, white discharge, it’s likely that this is the case. Click here to learn how to treat thrush.

Colour change to blue or green (Positive Result)

If your Canestest swab changed colour and the tip becomes blue or green, it means that you may have a BV infection. BV infections are usually accompanied by symptoms such as a thin, grey discharge and an unpleasant fishy smell. Click here to learn how to treat BV

It also may mean that you are suffering from Trichomoniasis, a sexually transmitted disease that presents with symptoms of unusual yellow-green discharge with an unpleasant odour and a vulvar itch. Treatment is available on prescription by your GP.

Precautions and considerations

Remember, Canestest won’t be able to give you an accurate diagnosis in any of these situations:

  • It’s less than one day before or after your period
  • There are signs that your period has arrived or you have any signs of vaginal bleeding
  • It’s been less than 12 hours since you’ve had sexual intercourse or used a vaginal douche


If you are pregnant a positive result may indicate an amniotic fluid leakage. If you are pregnant, consult your physician before use, as interpreting test results during pregnancy and choosing a medication requires professional knowledge.

If you’re confused by the results or unsure about the right treatment, your doctor can advise what treatment is right for you.


Always read the label.
If you want to report a side effect or quality complaint, please contact your health care professional (e.g. physician or pharmacist), or the Health Products Regulatory Agency (HPRA), or go to the “Contact” menu at
Enquiries can also be directed to

Unfortunately we are still experiencing supply issues on the following Canesten products; Canesten Combi, Canesten 500mg pessary, Canesten 200mg and Canesten Duopak. Canesten Soft Gel Combi will be available in store from late January. Supply of Canesten 2% Thrush cream and Canesten 1% cream is unaffected by the supply issue. This website will be updated as further updates come through. Apologies for the inconvenience this is causing to pharmacies and our customers.

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