yeast infection

noun

: infection of the vagina with an overgrowth of a normally present candidal fungus (Candida albicans) that is characterized by a discharge and inflammation
broadly : an infection (such as thrush) caused by a yeast fungus or a yeast-like fungus

Examples of yeast infection in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Taking antibiotics, pregnancy, or hormonal disturbances, unmanaged diabetes, or having a weakened immune system all contribute to someone’s possibility of getting a yeast infection. Deenie Hartzog-Mislock, Outside Online, 29 July 2025 Symptoms of a yeast infection include a rash that is very red, itchy, and irritated.2 A bacterial infection of the breast may be caused by bacteria calledStaphylococcus aureus, which grow normally on your skin. Wendy Wisner, Health, 23 July 2025 The antifungals for yeast work a bit better, FWIW, but as many as 28% of people still wind up with recurrent yeast infections. Erica Sloan, SELF, 7 July 2025 The hospital diagnosed oral yeast infection and sent her home, her sister and partner said. Arthur Allen, Miami Herald, 4 June 2025 See All Example Sentences for yeast infection

Word History

First Known Use

1966, in the meaning defined above

Time Traveler
The first known use of yeast infection was in 1966

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Cite this Entry

“Yeast infection.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/yeast%20infection. Accessed 6 Aug. 2025.

Medical Definition

yeast infection

noun
: an infection of the vagina with an overgrowth of a yeastlike fungus of the genus Candida (C. albicans) normally present in the vaginal flora and characterized by vaginal discharge and vulvovaginitis
broadly : an infection (as thrush or tinea versicolor) caused by a yeast or yeastlike fungus

More from Merriam-Webster on yeast infection

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