Better2Know Sexual health & STIs

Gardnerella (oral swab)

A single oral swab test checking for Gardnerella vaginalis bacteria in the mouth, aimed at people with persistent oral odour, recurrent infections or a related diagnosis elsewhere on the body.

Sample
Swab
Collection
Oral swab sample at clinic
Results in
2 days
Biomarkers
1
Tests for
  • Gardnerella

Test specifications

Provider
Better2Know
Sample type
swab
Collection method
oral swab sample at clinic
Turnaround time
2 days
Biomarkers tested
1
At-home test
No
Doctor reviewed
No
Gender focus
Both

What's tested

1 biomarker as listed by Better2Know.

  • Gardnerella

About this test

Gardnerella vaginalis is usually tested for using a urine or vaginal sample, but it can also be found in the mouth. This test takes a swab from the oral cavity to check for that specific colonisation, which may be relevant if you have persistent bad taste or odour, recurrent oral infections, or a Gardnerella diagnosis elsewhere that a clinician wants to follow up.

Better2Know does not list this as part of a wider comparison group, so there is no like-for-like Gardnerella oral-swab test to weigh it against directly. It tests a single marker, focused specifically on oral colonisation rather than the more usual vaginal or urine-based check.

It scores well for how clearly the test is listed and for its two-day turnaround. It scores lower for collection convenience because it needs a clinic appointment rather than a home kit, and lower again for results and follow-up because results are not reviewed by a doctor as standard.

Who is it for?

This suits someone who has specific oral symptoms, such as a persistent bad taste or odour, or who has already been diagnosed with Gardnerella elsewhere and wants to check for oral colonisation as part of managing that.

Because there is no comparison group listed for this test, there is no specific cheaper or deeper alternative from the sheet to point you to here.

How it works

A clinician takes a swab from inside your mouth at a Better2Know clinic and sends it to the lab for analysis. Results are back within two days. The fact sheet does not show results being reviewed by a doctor as standard.

Pros & cons

Pros

  • A simple, non-invasive oral swab rather than a blood draw.
  • Results back within two days of the sample reaching the lab.
  • Tests a specific oral-colonisation question that a standard vaginal or urine Gardnerella test does not cover.

Cons

  • Requires a clinic visit; there is no home kit for this particular oral-swab version.
  • Standard reporting has no doctor review built in.

Our editorial score

Compare Health Test Score Oral swab check for Gardnerella, clinic visit required
Editorial confidence: 9.0/10

This test uses one oral swab to check for Gardnerella vaginalis bacteria in the mouth rather than the more usual urine or vaginal sample. Better2Know does not list a comparison group for this £185 test, so there is no named rival to weigh it against. Results are not reviewed by a doctor as standard.

Score breakdown

  • Clarity and documentation 9.0/10

    The listing publishes a detailed description, the full biomarker list, a stated turnaround, clear collection options, the sample type; it does not state what the report looks like.

  • Clinical depth 5.8/10

    1 biomarkers, placing it in the 21st percentile of sexual health tests we track.

  • Collection convenience 4.0/10

    A swab sample taken at a clinic; results in around 2 days, in line with or faster than similar tests.

  • Results and follow-up 3.0/10

    Results are not doctor-reviewed and no consultation is included; the provider does not describe the report format.

  • Trust signals 6.5/10

    Trustpilot 4.2 from 775 reviews; CQC registered; trading 18+ years.

  • Value for money 5.1/10

    £185.00 against a median of £145.00 for the 81 similarly sized sexual health tests we track (+28%).

Calculated 13 September 2026 from the facts we hold about this test and provider, using our published scoring formula. Scores are not hand-edited.

More in Sexual health & STIs

View all →
Blue Horizon Medicals

HIV Screening

Broad, at-home HIV screen well under category average price

This test checks for HIV 1 and 2 antibodies plus the p24 antigen, which can be detected earlier than antibodies alone. It suits anyone wanting an at-home check after a possible exposure.

  • At-home test
8.8 / 10
£45.25
Full review →
Blue Horizon Medicals

HIV and Hepatitis Screen

Three-virus screen priced well under category average

This screen checks for HIV, Hepatitis B and Hepatitis C antibodies in one blood test, covering the three infections most associated with sexual transmission. It suits anyone wanting a combined check in a single sample.

8.7 / 10
£54.25
Full review →