1 doctor weighed in:

How much percentage of people have Cancer when Fecal occult blood test is positive ?I waiting fora follow up appointment with a GI Dr.

1 doctor weighed in
Dr. Myron Arlen
Surgery - Oncology

In brief: Small incidence

About 25% of positive fecal occult blood tests are associated with cancer.
The majority of the tests miss a cancer which may not release blood into stool or detect blood from intermal hemorrhoids or fissures in rectum. Blood tests to define gene mutations more accurate but don't guarantee tumor presence, only potential for developing malignancy. New tests detect shed tumor protein in stool.

In brief: Small incidence

About 25% of positive fecal occult blood tests are associated with cancer.
The majority of the tests miss a cancer which may not release blood into stool or detect blood from intermal hemorrhoids or fissures in rectum. Blood tests to define gene mutations more accurate but don't guarantee tumor presence, only potential for developing malignancy. New tests detect shed tumor protein in stool.
Dr. Myron Arlen
Dr. Myron Arlen
Thank
Get help from a real doctor now
Dr. Marsha Davis
Board Certified,
25 years in practice
67M people helped
Continue
111,000 doctors available
Read more answers from doctors