Occult Blood DETAILS

Faecal Occult Blood


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Our Occult Blood test basically is a single test requiring a chemical assay using a stool (fecal) sample. To perform this test you will need to visit your laboratory of choice for the collection of appropriate bottle for submission of a stool (fecal) sample.


This tests refers to blood in the feces that is not visibly apparent (unlike other types of blood in stool such as melena or hematochezia). A fecal occult blood test (FOBT) checks for hidden (occult) blood in the stool (feces). This test is part of a routine physical examination. It is also part of routine screening for asymptomatic individuals over the age of 50 years.

Normally only minimal quantities of blood are passed into the gastrointestinal (GI) tract. Usually this bleeding is not significant enough to cause a positive result in stool for FOBT. Fecal occult blood testing (FOBT), as its name implies, aims to detect subtle blood loss in the gastrointestinal tract, anywhere from the mouth to the colon. Positive tests ("positive stool") may result from either upper gastrointestinal bleeding or lower gastrointestinal bleeding and warrant further investigation for peptic ulcers or a malignancy (such as colorectal cancer or gastric cancer). 

The test does not directly detect colon cancer but is often used in clinical screening for that disease, but it can also be used to look for active occult blood loss in anemia or when there are gastrointestinal symptoms.

Disclaimer: Laboratory test results are NOT to be interpreted as a "stand-alone" item. Test results have to be interpreted after correlating with suitable clinical findings and additional supplemental information/tests. The meaning of your tests results will be explained by your healthcare providers, based on additional information you provide them.