Fecal yeast is a common fungus in the environment that can enter the intestines with environmental pollution, and can also be seen after taking yeast tablets. More common in the fermented manure in summer. This test is a project in the stool routine, and the detection of yeast in the stool has no clinical significance. Fecal yeast includes common yeast, human yeast, and Candida.

Basic Information

Specialist classification: Digestive examination classification: feces / parasitic examination

Applicable gender: whether men and women apply fasting: not fasting

Tips: Take the specimen method to take fresh stools for inspection, the amount is about the size of broad beans, the container is a clean wax carton or jar. If the stool specimen is not fresh or dried, it will cause the death of eggs or bacteria, which will affect the correct diagnosis. Normal value

Commonly, a small amount of yeast is detected in the stool as a normal phenomenon, and has no practical clinical significance.

Clinical significance

Abnormal results:

When the amount of fecal yeast is more than 10%, the colony in the intestine is out of balance, possibly due to symptoms such as diarrhea and abdominal pain.

Need to check the crowd:

Patients with changes in stool shape, patients with intestinal flora imbalance and secondary diarrhea.

When clinical antibiotics are applied, if there is a disorder of intestinal flora and secondary diarrhea, stool should be sent for fungal examination.


Requirements for inspection:

1. Yeast culture medium should be cultured at body temperature. The culture medium should be broth culture medium.

2. For those who are not easy to obtain feces or infants, they can be collected by swab (also known as anal swab). The front end of the swab is moistened with sterile glycerin water and then inserted into the anus about 4 to 5 cm (about 2 to 3 cm for the child). The mucus on the surface of the intestine is gently rubbed and then transferred to the transport medium for examination.

Preparation before inspection:

1. Take the specimen method and take the fresh stool for inspection. The amount is about the size of broad bean, and the container is a clean wax carton or jar.

2, if the stool specimen is not fresh or has been dried, it will lead to the death of eggs or bacteria, affecting the correct diagnosis.

Not suitable for people:

Non-invasive examination, there is no inappropriate population.

Inspection process

This test is a culture method, diluted to a certain concentration and applied to the medium to see the number of bacteria.

Yeasts are some single-celled fungi and are not a unit of systematic evolutionary classification. The spore-forming strain belongs to ascomycetes and basidiomycetes. An incomplete fungus, or "pseudo-yeast", is called an incomplete fungus that does not form spores but is mainly propagated by budding. Yeast has a typical eukaryotic cell structure, including cell wall, cell membrane, nucleus, cytoplasm, vacuole, mitochondria, etc., and some also have micro-organisms.

Not suitable for the crowd

This test is a non-invasive test, so there is no contraindication.

Adverse reactions and risks

This test is a non-invasive test and the test itself does not present complications and hazards.