What is it?

Gardnerella is a bacterial infection.  It is often associated with Bacterial Vaginosis.  It is a very common cause of vaginal infection (vaginitis).  Bacterial Vaginosis is the result of bacterial overgrowth (making it different from thrush/ candida which is caused by a yeast).  There are many possible causes for this imbalance ranging from changing your soap brand to a having a new sexual partner, using an IUD, and not using a condom.  

Gardenerella is more common in women, but it is possible for them to pass it on to their partner.  Men rarely have symptoms with gardnerella.

Did you know? …

Gardnerella often has no symptoms but can make you more likely to contract further STIs and lead to complications with your pregnancy. Click here to see the full article.


Most patients have no symptoms if they have a gardneralla infection.  When symptoms do occur, these can include:

  • A watery discharge (often grey, green or yellowish in colour)
  • A “fishy” odour
  • Itching and burning when urinating 

Gardnerella testing

You can be tested at any of our Better2Know clinics in Ireland by providing a urine sample.  The results are available five days from when your sample is received in the laboratory.  Please make sure that you are able to provide a urine sample at the time of your appointment.


A Gardnerella infections can clear up on their own.  If you have symptoms or you or your partner are trying for a babt, it can be treated with a short course of antibiotics.  These can be prescribed by your Better2Know doctor.

Adverse consequences

Gardnerella is most serious if you or your partner is pregnant or wants to be pregnant.  It may cause complications during the pregnancy if not treated appropriately.

Gardnerella can make you more likely to become infected with other STIs including HIV, Chlamydia and Gonorrhoea.  You are also more likely to pass Gardnerella and other infections onto a new partner.

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