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Blastocystis hominis - Parasite Test

Blastocystis hominis
Blastocystis hominis is a single celled parasite which is present in 45%  of cases where patients experience intestinal complaints such as bloating, flatulence and nausea. Blastocystis hominis has the appearance of a yeast cell and stores starch which is used for growth and cell division. A low carbohydrate, low starch diet decreases the symptoms in most cases.

More than 4 million Dutch citizens carry Blastocystis hominis with them. Since this parasite is so common, it is logical to assume that Blastocystis hominis in an ordinary organism and not harmful, but  recent studies indicate that a third of the people infected with B.hominis suffer from IBS symptoms. Scientists have isolated 17 different B.hominis subtypes, some are associated with irritable bowel syndrome symptoms and one particular subtype can cause itching, which may be caused by an allergic reaction to the parasite. Blastocystis hominis can also infect cows, pigs, chickens and horses.

Abdominal pain or cramps
Soft stool
Itching of the skin
In combination with irritable bowel symptoms: fatigue, insomnia, nausea, headache, decreased concentration or malaise.

Irritable Bowel Syndrome, IBS
Complaints caused by infection with Blastocystis hominis are, to a large extent, similar to the symptoms of the Irritable Bowel Syndrome (IBS). Over 40% of people with IBS symptoms are infected with Blastocystis. Not all infections with B.hominis cause complaints, but there is considerable overlap between these two conditions. Proof that Blastocystis hominis is responsible for causing symptoms can be only obtained when the symptoms disappear after a successful medical treatment.

The Parsiet.com laboratory uses a molecular real time PCR test, to identify the DNA of the parasite. The subtyping is still in an experimental stage and for thatb rteason not standard determent.

1. Medication
An infection with B. hominis does often not require a treatment, but should be discussed with your medical doctor. Treatment can only take place under the guidance of a physician. Blastocystis is difficult to eradicate. Available treatments are Flagyl® (metronidazol) and clioquinol; a 10 day course of either of the medicines has a 50% success rate. It is important to know that metronidazol contributes to medicine resistance. Clioquinol provokes no resistance. There no need to treat if there are no symptoms, however one must remain aware of the risk of infecting others.

2. Nutrition
Start a preparatory diet 10 days before the treatment. The diet requires the omission of sweets, fruit juices and all starches. Foods rich in starch provide an increase in symptoms such as bloating of the abdomen. Starch contains 100% glucose: cereals and grains contain 60 - 70 grams of glucose per 100 grams. Parasites use glucose for growth and cell division. When sugar and cereals are omitted the bloating will diminish.  By replacing starch with green leafy vegetables (containing only 1 gram of glucose per 100 grams) the success rate of a cure will increase. This diet is similar to the anti-Candida diet, eliminating  (sourdough) bread, rice, pasta, fruit juices, potatoes and starchy products from the diet. The parasite does, in most cases, not disappear as a result of a sugar- and starch free diet. To eradicate the parasite the diet has to be combined with medication. Food and medicine are complementary.

In view of the low success rate of the treatment of B.hominis, it is important to repeat the stool test 7 days after the medicinal treatment.




Parasite Test Options

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Pay with iDeal (Dutch Banks Only)

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Or pay via Bank Transfer

Application through bank transfer:
If you would rather request a test package by bank transfer, please follow these steps:

Step 1. Choose which parasites test (loose or package) you wish to order:
A - Dientamoeba fragilis (LOS) - € 75.00 EUR
B - Blastocystis hominis (LOS) € 75.00 EUR
C - Giardia lamblia (LOS) € 75.00 EUR
D - Dientamoeba fragilis and Blastocystis hominis (PACK) € 125.00 EUR
E - Dientamoeba fragilis and Giardia lamblia (PACK) € 125.00 EUR
F - Giardia lamblia and Blastocystis hominis (PACK) € 125.00 EUR
G - Dientamoeba fragilis, Blastocystis hominis and Giardia lamblia (PACK) € 160.00 EUR

Stap 2. Transfer the amount of the required test to our bank account:
Name: Darmparasieten
Bank: Rabobank
Account Number: NL84 RABO 0146 4285 79
Place: Leeuwarden, The Netherlands*
Description/Subject: Your full name
IBAN: NL84 RABO 0146 4285 79

Step 3. Send us an e-mail confirmation to info@parasiet.com. Once this confirmation has been received you will receive a package within 3 (business) days. (Follow the instructions provided with the package.)

*Our laboratory is in the Netherlands, however this will NOT affect the accuracy of the test when sending stool samples as it is preserved in the fixation fluid. If you have any questions or wish to receive additional information, please do not hesitate to contact us: info@parasiet.com. We will be happy to assist you.

In samenwerking met Darmparasieten


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Thank you for visiting this website. We hope that we have provided you with sufficient information and have answered your questions regarding intestinal parasites. It is our goal to contribute to the diagnosis of intestinal problems, since one in five people suffer from chronic bowel complaints. Stool exams provide a major contribution in identifying the cause of the symptoms. For many people the diagnosis of Irritable Bowel Syndrome, IBS, and testing is of great value since more than 30% of IBS patients are infected with parasites.

Many doctors do not order parasitic tests, the reason is often the unfamiliarity with the subject. Many doctors assume that most people are infected in (sub) tropical regions, and are not aware that infection with parasites is no longer the specialized field of tropical medicine. Through tourism and immigration we all come into contact with intestinal parasites on a daily basis. Children are often contract a infection in kindergarten or school. The laboratory uses advanced DNA testing techniques and offers the test at the lowest possible price.