This is even more sensitive than the previously used hemoccult test.
Blood in your stool sample.
So to answer the question you are just looking for blood.
The fecal occult blood test fobt is a lab test used to check stool samples for hidden occult blood.
As of recently an immunological test ifobt may be used during stool examinations.
Blood may appear in the stool because of one or more of the following conditions.
Occult blood in the stool may indicate colon cancer or polyps in the colon or rectum though not all cancers or polyps bleed.
Typically occult blood is passed in such small amounts that it can be detected only through the chemicals used in a fecal occult blood test.
The digestive or gastrointestinal gi tract includes the esophagus stomach small intestine large intestine or colon rectum and anus.
And if you see it you need to report it to your family physician for investigation.
It serves among other things for early detection of colon cancer.
Large amounts of blood.
If blood is coming from the rectum or the lower colon bright red blood will coat or mix with the stool.
Firstly blood in your poop is not normal.
All blood passed in the stool around the stool or after the stool is abnormal and represents a problem of varying severity.
Benign non cancerous or malignant cancerous growths or polyps of the colon hemorrhoids swollen blood vessels near the anus and lower rectum that can rupture causing bleeding anal fissures splits or cracks in.
Seek emergency care if you notice.
Sometimes the amount of blood is so small that it can only be detected by a fecal occult test which checks for hidden.
Seek medical advice for any blood in stool.