Keywords: Thrush

Key Information

Appropriate Tests

Local sites

If diagnosis is in doubt: specimen from lesion for fungal microscopy and culture (MCS fungal).

See also Chronic mucocutaneous candidiasis.

Mucous membranes, especially

  • Oral
  • Vaginal

Swab for microscopy and culture for fungi (yeasts)

Skin, nail

Skin scrapings and nail clippings (MCS fungal); biopsy is rarely required.


Corneal scraping or biopsy; prior arrangements must be made with the pathologist for direct inoculation into culture media (MCS fungal).

Systemic Infections

Blood culture, MCS urine, Cerebrospinal fluid examination (as appropriate), MCS fungal tissue biopsy.



Antibiotic therapy


Diabetes mellitus





  • HIV infection


Iron deficiency (severe)


Chronic mucocutaneous candidiasis

See HIV infection, Sexually transmitted diseases.