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♦ Welcome to Parasiet.com, the online resource for ordering a parasite test package along with answering all your questions regarding parasites, their symptoms and their complications. ♦

Parasieten Test Aanvragen

Frequently Asked Questions (FAQ)

10 most frequently asked Questions
1. What is a parasite test?
2. How do I interpret the results?
3. Is it necessary to test partners and/or whole family when one person is infected?
4. My physician indicates that the parasites are not harmful, and treatment is not necessary
5. I am infected with a parasite, how can I be treated?
6. My test came back positive but I have no complaints, should I be treated?
7. How do I know that the parasites are no longer present after treatment?
8. I have received the diagnosis Irritable Bowel Syndrome (IBS). Can I be infected with parasites?
9. How did I contract parasites?
10. How do I avoid becoming re-infected?

1. What is a parasite test?
The test for intestinal parasites is a stool test. When you order a test online you will receive materials for collecting and shipping a stool sample. You collect a stool sample at home and send it to the laboratory.
After reading and agreeing to the disclaimer, the application form opens. Fill in the required details and select the desired test: Dientamoeba fragilis, Blastocystis hominis and/or Giardia lamblia/Cryptosporidium.

2. How do I interpret the results?
There are three possible results:
a. Positive: One or more parasites are present in de stool. You are infected.
b. Negative: No parasites were found.
When suffering from intestinal problems – also when no parasites were identified - we advise you to consult a doctor. There are numerous diseases causing intestinal symptoms, such as a lactose intolerance, gluten allergy or bacterial infections.
c. Inconclusive: A small percentage of results are inconclusive because the test shows a very weak signal of parasitic DNA. In these cases it is not clear whether the presence the DNA is caused by infection or contamination of the sample. If your test result is inconclusive the laboratory offers you a new test free of charge. If you wish to make use of this offer, you have to send in a new sample within 14 days.

3. I am infected, does the whole family and/or my partner need to be tested?
Yes. For all infectious diseases it is advisable to test all persons with whom you have close contact.
Testing is necessary, even if your partner or children have no complaints. If children and/or a partner are infected but not treated, they constitute a risk; they can re-infect you after your treatment. This can often occurs within months of treatment.

4. My doctor indicates that D.fragilis and B.hominis are not harmful and I do not have to be treated.
Dientamoeba fragilis is recognized worldwide as a harmful (pathogenic) organism.
Blastocystis hominis knows several subtypes associated with symptoms, however the testing for subtypes is not yet available. Only after a successful treatment and a decrease of the symptoms one can conclude that the problems were caused by B.hominis. If you suffer from intestinal problems a treatment is advisable.

5. I am infected with a parasite, how can I be treated?
Dientamoeba fragilis, Blastocystis hominis, Giardia lamblia and Cryptosporidium spp. can be treated by your physician. The laboratory emphasizes the importance of always discussing the test results with your doctor or specialist. The laboratory does not provide treatment advice.

6. My test came back positive but I have no complaints, should I be treated?
If you, your partner and/or family members receive a positive test result you should all be treated, even if there are no complaints. A carrier of parasites can infect others. For example, when you have head lice, all family members have to be examined and treated if needed. When you contract a sexually transmitted disease your partner also needs to be treated if tested positive. In case of a parasitic disease it is not the symptoms, but the fact that you are contagious that matters.

7. How do I know that the parasites are no longer present after treatment?
You should have a follow-up test. This can be requested by your doctor or through this website. You want to be sure the parasites are no longer present. Let the follow-up test take place 6 to 7 days after the end of the medicinal treatment. If you have previously ordered the test through this website, you will receive a 15% discount on the follow-up test.

8. I have received the diagnosis Irritable Bowl Syndrome (IBS). Is it possible that I am infected with parasites?
If you have typical IBS symptoms such as flatulence, abdominal pains or cramps, bloating, diarrhea and/or constipation are present, there is more than a 30% chance that you are infected with intestinal protozoa. Only a successful treatment and the disappearance of the IBS symptoms can prove the connection. Some suffer from post infection IBS: in that case the symptoms will persist.

9. How did I contract parasites?
People become infected through contact with the faeces of another person. Infection with intestinal parasites often takes place in our own environments, not only during travel.
a. One can come into contact with faeces while using the toilet; the push button, the doorknob, light switch, and even the tap may contain traces of stool.
b. If one does not wash the hands, the faeces of another can be ingested while eating.
c. When the cook (at home or in a restaurant) does not wash the hands properly and touches uncooked food such a salads, one can get infected.
d. One comes into contact with parasites through contaminated food and water (even in swimming pools).
e. Certain jobs represent a high-risk. During the care of the sick, the elderly and young children parasites can be transmitted.

10. How do I prevent infection with intestinal parasites?
People become infected by friends and relatives, at the workplace, at school and especially at home, when the spouse or children are infected. By paying attention to hygiene one can prevent an infection. In fact, the essence of preventing infection comes down to washing the hands.
● Wash the hands after each toilet visit, and dry the hands with a paper towel (or hot air). Do not touch the doorknob of the bathroom after washing.
● Wash hands and dry with a paper towel at home. The push button, doorknob of the bathroom faucet should be kept clean.
● Wash hands after taking care of the sick, elderly or small children using diapers.
● Certain professions carry an increased risk of infection: nurses, plumbers, butchers and waste disposal workers.
● Always wash hands before preparing food.
● Wash hands before eating. Especially when eaten with the hands.
● Before you eat a snack the hands should always be washed.
● Avoid eating snacks (a piece of cheese or slice of sausage) offered for tasting in shops when handled by the shopkeeper with bare hands.
● Hygienic handling of food, such as raw meat and salads is essential.
● Do not eat raw food while dining out, unless you eat at a good restaurant. This point is especially important when traveling in (sub) tropical areas.



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.