Test Overview
A stool culture is done to identify bacteria or viruses that may be
causing an infection. Although more than 50 different
kinds of bacteria normally live in the
intestines
, large numbers of abnormal bacteria,
viruses,
fungi, or
parasites can grow in the intestines and cause
infections and diseases.
For a stool culture, a stool sample is collected in a clean
container and placed under conditions that allow bacteria or other organisms to
grow. The type of infection is identified by noting the appearance of the
growth, by performing chemical tests on the stool sample, and by looking at the
sample under a microscope.
Usually several stool samples are collected over a period of days
for accurate test results.