A stool test is a medical test that you do at home. In this test, you collect a small sample of your stool (which is solid waste that your body produces after digestion). The sample is then sent to a laboratory to check for any health issues, such as traces of blood or signs of diseases like colorectal cancer.
In a medical context, a stool test can also be referred to as a fecal occult blood test (FOBT) or fecal immunochemical test (FIT). These are specific types of stool tests that look for hidden (occult) blood in the stool.
There aren’t specific idioms or phrasal verbs that include "stool test," but here are some related terms:
A stool test is an important health check that you can do at home to help detect serious conditions like colorectal cancer.