If your hair is always itchy and you start seeing white flakes on your shoulders, these are signs that you’ve got dandruff. Fortunately, it’s not contagious, but it is a problem that’s uncomfortable, annoying, and embarrassing.
But what causes it?
Dandruff is thought to be caused by a fungus called malassezia, a fat-eating fungus, which lives on the scalp of most healthy adults.
While it does not cause problems for most people, malassezia can sometimes grow out of control and begin feeding on the oil on your scalp.
The result is increased cell turnover and a large number of dead skin cells. These cells, combined with dirt and oil from your hair and scalp, form flaky white scales.
However, there are several conditions that can be confused as dandruff. There’s psoriasis, dry skin, seborrheic dermatitis, or contact dermatitis, which present similar symptoms.
Before getting treatment for dandruff, consult your dermatologist to make sure you’re treating the right condition.
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