One of the most common misconceptions about dandruff is that it is caused by dirty hair or an unhygienic lifestyle, making it a source of embarrassment. However, dandruff results from a fungus called Malassezia globosa that resides on the scalp and causes flaking, itching, and irritation. It can happen to anyone and should not be ignored, as untreated dandruff can lead to inflammation and other symptoms that are harder to manage. What Causes Dandruff? Dandruff can arise from a variety of causes, including: Fungal Growth : Malassezia globosa , a naturally occurring fungus, breaks down scalp oils, producing byproducts that can irritate the skin and cause flaking. Seborrheic Dermatitis : A condition characterized by red, oily, and flaky skin, often linked to dandruff. Dry Skin : Lack of moisture in the scalp can lead to flaking, often accompanied by smaller, less oily flakes. Sensitivity to Hair Products : Some shampoos, conditioners, or styling products may irritate the scalp and ...