PSI Barbering Practice Exam

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What fungus is primarily responsible for dandruff?

Aspergillus
Malassezia
Trichophyton
Microsporum

The correct answer is: Malassezia

The fungus primarily responsible for dandruff is Malassezia. This type of yeast is a part of the normal flora of the scalp and skin but can become problematic when it overgrows. The overproduction of Malassezia can lead to an inflammatory response, resulting in the flaking skin characteristic of dandruff. In contrast, Aspergillus is a genus of fungi that primarily affects the lungs and does not play a role in dandruff. Trichophyton is mainly associated with dermatophyte infections such as athlete's foot and ringworm, and Microsporum is another dermatophyte that can cause skin infections but is not involved in dandruff. Understanding the role of Malassezia helps in effectively addressing dandruff through appropriate treatments aimed at controlling its growth on the scalp.