🦠microbiology review

Yeast infection

Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025

Definition

A yeast infection is a fungal infection primarily caused by Candida species, most commonly Candida albicans. It typically affects the mucous membranes of the urogenital tract, leading to symptoms like itching, discharge, and irritation.

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5 Must Know Facts For Your Next Test

  1. Candida albicans is the most common causative agent of yeast infections in humans.
  2. Yeast infections can be triggered by factors such as antibiotic use, hormonal changes, and immunosuppression.
  3. Diagnosis often involves microscopic examination and culture of samples from the affected area.
  4. Antifungal medications like fluconazole are commonly used to treat yeast infections.
  5. The normal microbiota of the urogenital tract can help prevent yeast overgrowth by competing for nutrients and space.

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