How is a routine stool examination performed?

Stool routine 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 specimens, leading them to overlook or decline this important diagnostic tool.

In fact, stool analysis provides essential baseline information about gastrointestinal function and overall health. Fasting is not required for this test. When collecting a specimen, use a sterile specimen container, which typically includes a built-in sampling spoon. A pea-sized stool sample is sufficient; place it directly into the container and deliver it promptly to the laboratory.

Laboratory technicians will then perform the appropriate analyses based on clinical requirements. Therefore, we strongly encourage individuals to include stool routine examination as part of their regular health check-ups. A normal stool routine result generally rules out active gastrointestinal inflammation, bleeding, or parasitic infection. Conversely, abnormal findings may offer valuable diagnostic clues—for instance, a positive fecal occult blood test (FOBT) may prompt further investigation, sometimes revealing colorectal tumors—even in asymptomatic patients. Hence, we recommend that stool routine examination not be overlooked during routine health screenings, and emphasize again that fasting is unnecessary for this test.