The number of colonoscopies needed to detect one person with advanced neoplasia was 5.1 for guaiac-positive patients but only 2.7 for immunochemical-test–positive patients. Colonoscopy revealed ...

A new blood test was found to detect colon cancer with more than 80% accuracy — and to rule it out for 90% of healthy people. The results were presented at the 2025 American Society of Clinical ...

Your immune system may identify the trigger—which is actually harmless—as a threat, and set the immune response into motion. There are several different methods of diagnosing allergies, including ...

[19] This study was limited by failure to establish the reliability of the bililabstix as a test for occult blood, failure to blind the test results, and retrospective patient classification.

These are the most important blood tests that doctors suggest you should have for a deep dive into your health. Lara Vukelich is a freelance writer in San Diego, California. She writes creative ...

Doctors use various blood tests for hair loss to identify the cause, including tests for hormone levels, thyroid function, and nutrient deficiencies like iron and vitamin D. Diagnosing hair loss ...

Should we all be concerned about our cortisol levels? I took a blood stress test and spoke with experts to find out. Anna Gragert Wellness Editor II Anna Gragert (she/her/hers) was previously the ...

Blood tests are often the first line of testing for evaluating MS symptoms. They can’t confirm a diagnosis of MS, but they can help rule out other conditions or point to a diagnosis. Multiple ...

Available laboratory tests may help diagnose lung cancer, though this is more likely with advanced tumors. Research offers hope that blood tests (biomarkers) will assist in the diagnosis or even ...

Grail's Galleri test screens for more than 50 different types of cancer from a single blood draw. (Getty Images) ...

Background: Three large randomised trials have shown that screening for colorectal cancer using faecal occult blood (FOB) tests can reduce the mortality from this disease. Two national pilot studies ...