The IBS & Gut Disorder Centre

Parasite Testing UK
If you would like to order a parasite test please call us on 0345 1297996 or e-mail us.
We will post you a stool kit, the results take 2 weeks.

If you are experiencing any of the following symptoms you may be suffering from a parasitic infection:

Skin problems
Brain fog
Irritable bowel syndrome
Seeing worms in your stool

Some patients have picked up parasites after a trip abroad to destinations such as Egypt, Morocco, Greece, Mexico, Turkey. However parasites are very prevalent in the UK as well.

Parasite Test

We offer parasite testing via a stool test- this is non-invasive and very easy to carry out at home.

The stool test will examine the following:
Beneficial bacteria,
Yeast including Candida Albicans and Geotrichum Species
Friendly gut flora
Dysbiotic or bad bacteria

What types of Parasites are tested for?

The parasites that we test for include:
Anisakis simplex
Ascaris lumbricoides
Balantidium coli
Blastocystis hominis
Capillaria hepatica
Capillaria philippinensis
Chilomastix mesnili
Clonorchis sinensis
Cryptosporidium parvum (EIA)
Dicrocoelium dendriticum
Dientamoeba fragilis
Diphyllobothrium latum
Dipylidium caninum
Echinostoma hortense
Echinostoma ilocanum
Endolimax nana
Entamoeba coli
Entamoeba hartmanni
Entamoeba histolytica/E dispar
Entamoeba polecki
Enterobius vermicularis
Enteromonas hominis
Fasciola hepatica
Fasciola hepatica/Fasciolopsis buski
Gastrodiscoides hominis
Giardia lamblia
Giardia lamblia (EIA)
Heterophyes heterophyes
Hookworm (Ancylostoma duodenale / Necator americanus) Hymenolepis diminuta
Hymenolepis nana
Organism Name
Iodamoeba butschlii
Isospora belli
Metagonimus yokogawai Paragonimus westermani Pentatrichomonas hominis Phaneropsolus bonnei Pygidiopsis summa Retortamonas intestinalis Schistosoma haematobium Schistosoma jabonicum/mekongi Schistosoma japonicum Schistosoma mansoni Strongyloides stercoralis
Taenia spp Toxocara canis Trichostrongylus Trichuris trichiura

This above stool test is suited to patients who have frequent diarrhea with urgency or may have had exposure to contaminated food, lakes or untreated water. The Comprehensive Parasitology stool test and other Parasite Test can also help reveal candida and bacterial overgrowth.

These have proved to be a cause of people’s symptoms in 31% of the sufferers from IBS who have consulted us. They are especially likely to be a cause where the major symptoms are:

1. Diarrhoea or endless loose bowel movements;
2. Abdominal pain;
3. A lot of gurgling or churning accompanied by the first two symptoms.

If the origin of the symptoms can be traced back to a bad stomach upset experienced on foreign travel, it increases the likelihood that parasites are the problem.

Even if the patient has been treated previously by means of a parasite test on the NHS, it is still very important to do a parasite test with the American laboratory that we use because their techniques are infinitely more sophisticated and will almost certainly find parasites in circumstances where an NHS test did not.

Dientamoeba fragilis and Blastocystis hominis are the commonest parasites that we find in Britain. The former should be relatively easy to eradicate; the latter can be extremely stubborn. If you have done a stool test in the past that was negative but you feel you match all the symptoms of a parasitic infection, or you had parasites in the pasr but are wondering if you have fully eradicated them, you may like to get in touch with us to further parasite testing because:

1. We can arrange a sophisticated PCR parasite test for you; and
2. If that test proves positive, you can finally get treatments that will relieve your symptoms

Metronidazole (also known as Flagyl), for instance, is the main drug prescribed by GPs in Britain for parasites, but it does not work in a great number of cases. It also tends to produce side effects which can be just as bad as, or even worse than, the original symptoms.


The problem for patients is that GP’s just do not seem to be aware that parasites can be a major cause of IBS. Nor, for that matter, even more surprisingly do gastroenterologists.

We have just had a patient in her twenties who has had EXTREMELEY BAD IBS for ten months – so bad in fact, that she has had to be off work for the whole of that time. She has been having diarrhoea up to fifteen times a day (ten times during the day and five during the night). She had been to her GP who suggested it was due to a virus! An exclamation mark is the kindest way I can think of commenting on that particular diagnosis.... Then eventually she was sent for a colonoscopy, an endoscopy, a barium meal, and a sigmoidoscopy. So these four tests together must have cost the NHS well over £1000 (or would have cost anyone doing them privately a total of about £2,500) and would have been followed by numerous visits to consultants.

What would we have done? The moment we saw that she had given diarrhoea ten out of ten on our long questionnaire we would have immediately suspected parasites. When we audited 120 successive stool tests that we did with the American laboratory we use, we found that 31.6% of those patients had parasites. Yet GP’s and gastroenterologists seldom ever seem to consider them when they are investigating a patient with diarrhoea.

For more on parasites, read Michael Franklin’s article below which appeared in Positive Health magazine entitled “The Real Causes of IBS”.

The IBS & Gut Disorder Centre
London, Sussex and Oxford
0345 1297996


The Real Causes of IBS

by Michael Franklin

If you would like to read the cover story article Michael Franklin wrote recently for Positive Health magazine, please click on the link below.$file/TheRealCausesofIBS.pdf

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