Is Dandruff Contagious?
Coughs and sneezes might spread diseases, but dandruff? Definitely not. Dandruff is not contagious – here’s why.
Whether you suffer from dandruff or not, you already have the two main factors present on your scalp – the microbe *Malassezia globosa *and natural scalp oils.
They’re present on everyone’s scalp, and for about 50% of the world’s population, their interaction causes dandruff.
More about the causes of dandruff
Why you can’t catch dandruff
You only get dandruff if you’re sensitive to the main causes, and you’re either sensitive or you’re not – it’s not something that can be caught like a cold or flu virus.
If you are sensitive to the combination of *Malassezia *and scalp oils, your body responds by speeding up the production of skin cells, causing excess skin to build up and appear as flakes.
Other symptoms include irritation, redness, itching and a dry scalp.
How to get rid of dandruff
To treat your dandruff is by using a tried and tested anti-dandruff shampoo that contains an active ingredient clinically proven to be effective on all the symptoms.
Like Head & Shoulders. We use pyrithione zinc in all our shampoos – it’s been approved by regulatory organizations around the world as an effective dandruff treatment.
See all our anti-dandruff shampoos
More tips and advice from the experts:
- The causes of dandruff
Frequently Asked Questions
No, dandruff is not contagious. You cannot catch dandruff from another person through physical contact, sharing personal items, or being in close proximity. Dandruff is a scalp condition that develops due to individual factors like genetics, scalp sensitivity, and the natural presence of Malassezia yeast on everyone's scalp.
Malassezia yeast naturally exists on virtually everyone's scalp as part of the normal skin microbiome. Since this yeast is already present on all scalps, dandruff develops based on individual scalp reactions and sensitivities rather than external transmission. The yeast itself isn't what you "catch"—it's how your particular scalp responds to it that may determine whether you develop dandruff.
While dandruff itself isn't contagious, sharing hair tools might not be the most hygienic practice in general. However, the risk isn't about catching dandruff—it's more about general scalp hygiene. If you do share brushes or combs, consider cleaning them between uses as part of good hair care habits rather than dandruff prevention.
Key risk factors may include: genetic predisposition, having naturally oily skin, stress levels, certain medical conditions that affect immunity, age (more common in adults than children), and individual scalp sensitivity to Malassezia yeast. These factors are personal rather than transmissible.
Dandruff doesn't technically "spread" since Malassezia yeast is present throughout the scalp. However, you might notice flaking in new areas if your overall scalp condition changes due to factors like stress, hormone fluctuations, or changes in hair care routine. This represents a worsening of the existing condition rather than spreading of an infection.
