Yeast is a type of fungus that can thrive in areas such as the skin, nails, mouth, digestive tract, and genitals. Although having some yeast on the body is normal, when the fungus becomes overgrown, it can lead to an unfortunate infection. Here at New York Medicine Doctors, we are well-versed testing for and treating yeast infections. If you believe you are being affected by one, consider reaching out to our team so we can administer a test that proves your suspicions right or wrong.