MedTerms Medical Dictionary

Yeast: A group of single-celled fungi that reproduce by budding.

Most yeast are harmless (some are used in baking and brewing). Yeast is commonly present on normal human skin and in areas of moisture, such as the mouth and vagina, usually without causing any problems.

However, yeast can produce disease in people. For example, the yeast Candida (once called Monilia) causes thrush (oral infection) and diaper rash in infants, fingernail infections, vaginal area infections in women after puberty, and a host of problems in patients with immune deficiency.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Find a medical definition by using the A-Z listing (select a letter)

Copyright © 1996-2003 MedicineNet, Inc. All rights reserved.
MedicineNet, Inc. does not endorse any of the services or products offered on this page.

Information in the MedTerms Medical Dictionary is provided for informational purposes only and is not a substitute for professional medical advice. You should not use this information for diagnosing or treating a medical or health condition. You should carefully read all product packaging. If you have or suspect you have a medical problem, promptly contact your professional healthcare provider.

Use the A-Z listing (select a letter) to find a definition

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z