How is Clostridioides difficile infection diagnosed?

How is Clostridioides difficile infection diagnosed?

Clostridioides difficile is diagnosed by testing the stool of patients who are having frequent liquid diarrhea such as 3 or more stools in a 24 hour period. In a severe case, a procedure called flexible sigmoidoscopy may be performed to confirm that the lower part of the intestine (colon) is inflamed. In this procedure a long, thin tube called a sigmoidoscope is placed inside the intestine to allow a doctor to visually examine the colon.