What are the main signs and symptoms of intestinal candidiasis?

    Written by:
    Gabrielle Fundaro

    Fact-checked

    by:

    Kamal Patel, Nick Milazzo
    Last Updated: May 16, 2025

    Intestinal candidiasis is usually asymptomatic, and past claims that associated Candida overgrowth with various ailments have been largely debunked. It may contribute to antibiotic-associated diarrhea and irritable bowel syndrome with diarrhea, but more research is needed.

    IC does not appear to have perceptible symptoms.[1]

    Controversial publications from the 1970s and ’80s claimed that intestinal Candida overgrowth lead to a long list of ailments, including fatigue, GI discomfort, recurring yeast infections, arthritis, acne, migraine headache, and heart issues, although most of these claims have been debunked.[1]

    IC may lead to diarrhea associated with antibiotics and irritable bowel syndrome with diarrhea (IBS-D), but more research is needed.