How is a routine stool examination performed?

Routine stool examination primarily assesses whether abnormal components are present in the stool—such as red blood cells, white blood cells, visible blood, parasites, or undigested food particles. It is a fundamental test included in routine physical examinations. However, many individuals avoid this test due to perceived inconvenience or concerns about hygiene when collecting stool samples, leading them to overlook or decline this important diagnostic procedure.

In fact, stool testing provides valuable baseline information about gastrointestinal function and overall health. Fasting is not required. When collecting a sample, use a sterile specimen container equipped with a sampling spoon or spatula; collect approximately a pea-sized amount of stool and place it directly into the container for prompt delivery to the laboratory.

Laboratory technicians will then perform the appropriate analyses based on your clinical requirements. Therefore, we encourage everyone to include routine stool examination during regular health check-ups. A normal result at least helps rule out gastrointestinal inflammation, bleeding, or parasitic infection.

Moreover, abnormal findings may provide critical clues to underlying gastrointestinal disease. For example, a positive fecal occult blood test (FOBT) may prompt further investigation—such as colonoscopy—which could reveal colorectal tumors, even in asymptomatic patients. Hence, we strongly recommend including routine stool examination in your periodic health assessments—and remember, fasting is unnecessary for this test.