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Stool sample

Professionally updated: January 12, 2026

A stool sample is a simple but essential diagnostic method where a small sample of stool is examined for the presence of specific bacteria, viruses or other pathogens. This method helps doctors identify the cause of various gastrointestinal diseases and determine the most effective treatment strategy.

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Jakob Fraes
Specialist in General Medicine, Ph.D.
Read more about Stool sample. Everything you should know.

What is being tested for?

By taking a stool sample, the doctor can test for a variety of bacteria and viruses. This can include everything from common bacterial infections such as salmonella or E. coli to more rare pathogens. In addition, the test can also reveal parasites and other microorganisms that can cause intestinal diseases.

What does the test involve?

The test is quick and painless. The patient will receive a kit for collecting the sample at home. This kit contains a special spoon and a container. The patient should use the spoon to gently collect a small amount of stool, which is then placed in the container. After collection, the sample must be returned to the laboratory as soon as possible.

Preparation for the test

No special preparation is necessary before taking a stool sample. However, it is recommended to avoid taking medication that may affect the gastrointestinal tract, unless your doctor has instructed you otherwise. This may include certain types of antibiotics or laxatives.

Possible results

The results from a stool sample can vary. A negative test means that no pathogens were found. If the sample is positive, it will specify which type of bacteria, virus, or other pathogen was found. This will help the doctor determine the best treatment strategy.

How do I interpret the results?

After receiving the results from the stool sample, your doctor will discuss them with you. If a specific pathogen is identified, the doctor may recommend treatment with antibiotics or other medications. It is important to follow the doctor's recommendations carefully to ensure a quick and effective treatment.

Other relevant tests

In addition to a stool sample, other tests may also be recommended depending on the symptoms. This could include blood tests, urine tests or even imaging such as an ultrasound. It's important to remember that a stool sample is only one method of diagnosis and your doctor will assess the best method for you.

Do you want to book a doctor's appointment

After reading the above information, you are now better equipped to understand the importance and process of stool sampling. If you would like to book an appointment with the doctor for a stool sample or have further questions, click here:

Frequently Asked Questions

How long does it take to get the result of my stool sample?

Typically it takes between 1-3 days, but it can vary depending on the busyness of the lab and the specific test being performed.

Is it safe to take a stool sample at home?

Yes, it is safe. You will receive clear instructions on how to properly collect the sample. It is important to follow these instructions carefully to ensure accurate results.

Can I take a stool sample while on medication?

It depends on the medicine. Some medications, such as antibiotics, can affect the results. Always inform your doctor about all the medicines you are taking before getting the test kit.