Understanding the FIT
The FIT (Fecal Immunochemical Test) is a simple stool test that screens for colon cancer by detecting tiny amounts of hidden blood in the stool.
What It Checks For
Colon cancers and large polyps can bleed small amounts that are invisible to the eye. The FIT detects that hidden blood in a stool sample.
It is a convenient screening option that does not require preparation, diet changes, or sedation. It is repeated every year.
What Your Results Can Mean
| Result | What It Means |
|---|---|
| NegativeNo Blood Detected | No hidden blood was found. You simply continue routine screening, usually once a year. |
| PositiveBlood Detected | Blood was found in the stool. This does not mean you have cancer; blood can come from many sources. The next step is a colonoscopy to find the cause. |
What’s Most Important to Know
The FIT is a screening test, not a diagnosis. A positive result should always be followed by a colonoscopy, which can both find and remove the source.
The FIT works best when done every year on schedule. Dr. Mui will help you choose the screening approach that fits you, including whether a colonoscopy is a better first choice.
This page is for general education and does not replace a conversation with your doctor about your specific results. Want to review your results? Book a visit and we’ll go through them together.