Group B Streptococcus Home Test Kit

A home swab test for Group B Streptococcus, combining a rectal and vaginal swab, usually taken in the final weeks of pregnancy ahead of birth.

  • At-home test
  • Subscription available
Sample
Swab
Collection
At-home rectal swab and vaginal swab sample, post to lab; also clinic £175
Results in
3 days
Biomarkers
1
Tests for
  • Group B Streptococcus

Test specifications

Provider
Better2Know
Sample type
swab
Collection method
at-home rectal swab and vaginal swab sample, post to lab; also clinic £175
Turnaround time
3 days
Biomarkers tested
1
At-home test
Yes
Doctor reviewed
No
Gender focus
Both

What's tested

1 biomarker as listed by Better2Know.

  • Group B Streptococcus

About this test

Group B Streptococcus (GBS) can be passed from mother to baby during childbirth, and testing in the final weeks of pregnancy helps inform decisions around the birth. This version has you take both a rectal and a vaginal swab yourself at home and post them to the lab, rather than attending a clinic.

Better2Know does not list a wider comparison group for this test, so there is no named rival to check it against directly. It is £105 cheaper than Better2Know's own clinic-based version of the same test, which costs £175.

It scores well for collection convenience, since it is a home kit with results back within three days, or a clinic option for £175 if you would rather have the swabs taken for you. It scores lower for results and follow-up because results are not reviewed by a doctor as standard.

Who is it for?

This suits someone approaching the final weeks of pregnancy who is comfortable taking both swabs themselves and wants to avoid a clinic appointment.

If you would rather have a clinician or nurse take the samples, Better2Know's own clinic version of this test is available for £175, though it is not doctor-reviewed as standard either.

How it works

You take a rectal swab and a vaginal swab at home and post both to the lab, with results back within three days. A clinic appointment is also available for £175 if you would prefer someone to take the samples. The fact sheet does not show results being reviewed by a doctor as standard, and Better2Know's own guidance says a positive result should be reported to your midwife directly.

Pros & cons

Pros

  • Combines a rectal and vaginal swab in one home kit, avoiding a clinic visit.
  • At £70, it costs £105 less than Better2Know's own clinic version of the same test.
  • Results back within three days of the sample reaching the lab.

Cons

  • You need to take both swabs yourself, which some people may find harder than having a clinician do it.
  • Results are not reviewed by a doctor as standard.

Our editorial score

Compare Health Test Score Home GBS swab kit, cheaper than the clinic version
Editorial confidence: 9.0/10

This kit combines a rectal and vaginal swab, taken at home and posted to the lab, to check for Group B Streptococcus. At £70 it costs £105 less than Better2Know's own clinic version of the same test. 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 6.6/10

    1 biomarkers, placing it in the 36th percentile of immunity tests we track.

  • Collection convenience 8.0/10

    A swab sample you take at home, no needle; results in around 3 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 9.1/10

    £70.00 against a median of £144.25 for the 79 similarly sized immunity tests we track (-51%).

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

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