Comprehensive Gut Parasite, Worm & Bacteria Test Panel

See our
reviews on
Trustpilot Logo


7 Biomarkers
Easy At-Home Test
Lab Analysis
Results in 6 Days
Stool Sample
Results Download

Worried about gut symptoms that you think might be related to a parasite, worm or bacteria? Our Comprehensive Gut Parasite, Worm and Bacteria Test Panel detects the most important culprits.

Use our easy home sampling kit to send a stool sample to the lab. Your sample will be analysed by our UKAS-accredited lab partner (who also test for the NHS) and you'll get your results and doctor's report in days.


Personalise your test

Depending on your age, sex and any symptoms, you may consider adding to your test panel.

Total Price:£95.00

Our Comprehensive Gut Parasite, Worm & Bacteria Test Panel is for you if...

  • You've got gut symptoms like diarrhoea, stomach pain, nausea and bloating.

  • You've been travelling abroad.

  • You've been in contact with someone else with a gut infection or gut symptoms.

How does the
Comprehensive Gut Parasite, Worm & Bacteria Test Panel help you?

Dr Claire Merrifield

Dr Claire Merrifield

GP, PhD and our Medical Director

open quote icon

Your healthy gut contains trillions of bacteria, parasites, fungi and viruses which usually live in harmony with your body. However, sometimes you can pick up a bug that shouldn't be there and can cause symptoms such as:

  • Diarrhoea
  • Stomach pain or cramps
  • Bloating
  • Feeling sick or nauseous

You’re more likely to pick up a parasitic or bacterial gut infection while travelling abroad or if someone you spend time with has also been unwell. A lot of the time, gut infections are over in a few days, but symptoms can last longer with gut parasites. If this is the case for you, it can be worth taking a test to see what’s going on.

Our Comprehensive Gut Parasite, Worm and Bacteria Test Panel tests for common and important gut infections caused by bacteria, parasites and worms all from one sample. It combines DNA-based PCR testing and stool microscopy to look directly for worms, parasites and eggs. In particular, PCR is much better at detecting Giardia than microscopy alone.

If your test comes back positive, we'll advise you on the next steps.

Limitations of the gut parasite test

It's important to be aware that a stool test is not the best way to pick up pinworms (threadworms). These are tiny, common but harmless thread-like worms that you can sometimes see in stool. If you can see these worms, the recommendation is usually just to treat them with the over-the-counter medication "Ovex" rather than take a test.

It is not uncommon for people to mistake vegetable or other faecal material for a worm. Seeing what you think may be a worm in your stool doesn't guarantee that evidence of a worm (eggs for example) will be seen when the sample is examined under a microscope.

Even when you do have a worm or other parasite infection, there is no guarantee that eggs will be present in the sample that's analysed. It's often recommended to examine up to three separate samples under a microscope to rule out some worm infections.

close quote icon

What's tested in your Comprehensive Gut Parasite, Worm & Bacteria Test Panel?

  • Bacteria

    Bacterial gut infections are often 'short-and-sharp' with violent symptoms that are over in a few days. However, sometimes symptoms can linger and it's worth testing for the commonest bacteria that cause gut infections. We use PCR to test for Salmonella, Shigella, Campylobacter and toxic E. coli (VTEC).


  • Worms

    Worms come in a few shapes and sizes. We examine the stool directly and look at it under a microscope to pick up microscopic parasites and any worm eggs. We can see evidence of roundworms, flatworms (flukes) and tapeworms. Sometimes we can also detect threadworms (pinworms) but in general the best way to pick up threadworms is with a swab from the bottom.


  • Parasites

    Two of the commonest parasites that cause chronic gut symptoms are Cryptosporidia and Giardia. We use PCR testing to pick these up.


Learn more about testing for gut parasites, worms and bacteria

Check out
related articles

Our medical experts review the evidence and dissect the science to separate fad from fiction and give you - in plain English - actionable insights you can trust.