Calprotectin

A calprotectin stool test measures a protein called calprotectin in a sample of your stool (poop). The test is also called a fecal calprotectin test. It's used to check for inflammation (swelling and irritation) in your intestines.

Calprotectin stool testing is used to check for inflammation in the intestines. In most cases, providers use calprotectin stool testing to help tell the difference between inflammatory bowel disease (IBD) and irritable bowel syndrome (IBS).