This lesson explains how Candida can cause vaginal candidiasis, how the condition is recognized and diagnosed, and what treatments may be considered. Understanding the difference between normal microbial presence and infection helps guide appropriate diagnosis and care.
Candida is a genus of fungi that can exist as single-celled yeast or as multicellular forms. Several species may cause disease, but Candida albicans is the species most commonly responsible for fungal vaginitis.
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What is vaginal candidiasis?
A fungal infection in which Candida overgrowth causes inflammation and symptoms in the vagina.
What is the most common fungal cause of vaginitis?
Candida albicans is the species most commonly responsible for fungal vaginitis.
Name three factors that can encourage Candida overgrowth.
Examples include antibiotic therapy, pregnancy, diabetes or other illness, transient microbes, and immunosuppression.
How is vaginal candidiasis commonly diagnosed?
Microscopic evaluation of vaginal secretions can reveal an excess of Candida, including yeast cells on a wet mount. Results are interpreted with symptoms and other clinical findings.
Why does finding Candida in a culture not always prove infection?
Candida may be part of the normal microbiota, and samples can also be contaminated. Its presence must be interpreted alongside symptoms and other findings.
Quiz questions
Which species is most commonly responsible for fungal vaginitis?Answer: Candida albicans
How can antibiotic therapy contribute to vaginal candidiasis?Answer: It can disrupt the microbial balance that normally limits Candida growth.
Which symptom pattern is commonly associated with vaginal candidiasis?Answer: Itching with thick white or yellow vaginal discharge
Why is culture less useful on its own for diagnosing vaginal candidiasis?Answer: Candida may be normal microbiota or present without causing disease.
For a pregnant patient with vaginal candidiasis, which treatment approach should be discussed with a clinician?Answer: A clinician-selected topical antifungal, generally preferred during pregnancy
Based on Microbiology by Nina Parker, Mark Schneegurt, Anh-Hue Thi Tu, Philip Lister, Brian M. Forster (OpenStax), licensed CC BY 4.0. Adapted into a summary, flashcards and quizzes.