Occult Blood Test: Why Screening Matters for Your Health
The occult blood test detects hidden blood in stool, which may indicate ulcers, polyps, or colorectal cancer. Learn about causes, test procedures, and result interpretation.
- Published
- August 10, 2024
- Read time
- 2 min read
What is Occult Blood?
Occult blood refers to the presence of hidden blood in bodily substances, often tested in stool or urine samples. Occult blood isn’t visible to the naked eye but can be detected through specific tests, such as the fecal occult blood test (FOBT) or urine dipstick test. The presence of occult blood may indicate bleeding somewhere in the digestive or urinary tract.
What does it assess?
The presence of occult blood can assess potential gastrointestinal or urinary tract issues, including inflammation, infection, or trauma.
How do I optimize my Occult Blood levels?
For fecal occult blood, a diet rich in fiber from fruits, vegetables, and whole grains can support digestive health and reduce risks of gastrointestinal bleeding. Avoid foods and beverages that may irritate the digestive lining, such as excessive alcohol, caffeine, and spicy foods. Good hydration can help protect the urinary tract from conditions that may lead to blood in the urine. Avoid activities that increase the risk of bladder or kidney injury. If occult blood has been detected, working with a healthcare provider to identify and treat the underlying cause is essential.
What do high and low Occult Blood levels mean?
An elevated level of occult blood in stool or urine can be a sign of bleeding within the gastrointestinal or urinary tracts. In stool, high occult blood levels may indicate polyps, ulcers, or colorectal cancer, especially if the test is positive on multiple occasions. In urine, high levels can suggest a kidney or bladder issue, such as infection, stones, or trauma. Low or absent levels of occult blood are typically considered normal and suggest there is no hidden bleeding within the gastrointestinal or urinary systems. This indicates that no significant trauma, inflammation, or abnormal growths are causing blood leakage within these systems.
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