Pityriasis Simplex (Dandruff) Causes, Symptoms, and Treatments

Dandruff affecting your confidence? Pityriasis Simplex is extremely common, but persistent or severe cases often have an underlying cause. On this page, you'll learn what causes it, how to identify the signs, and what treatment options are available.

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What is Pityriasis Simplex (Dandruff)?

Pityriasis Simplex, commonly known as dandruff, is one of the most widespread scalp conditions. It causes the scalp to flake, producing white or grey scales that shed onto the hair and clothing. While not harmful, it can be persistent and difficult to manage without the right treatment.

What are the symptoms of Pityriasis Simplex?

White or grey flakes visible on the scalp, hair, and clothing
Itching and mild scalp irritation
Dry or slightly oily scalp depending on the underlying cause
Redness of the scalp in more inflamed cases

Key facts about Pityriasis Simplex

Dandruff affects up to 50% of the adult population at some point
It is not contagious and does not cause permanent hair loss
It can be associated with an overgrowth of Malassezia yeast on the scalp
Stress, hormonal changes, and certain hair products can worsen symptoms

What triggers Pityriasis Simplex?

Malassezia yeast: Overgrowth on the scalp triggers an inflammatory response
Dry skin: A dry scalp is prone to flaking
Oily scalp: Excess sebum can encourage yeast growth
Stress and fatigue
Sensitivity to hair care products

Dandruff is extremely common and very treatable. With the right medicated shampoo and scalp care routine, most people see a significant improvement. If over-the-counter treatments aren't working, it's worth consulting a trichologist to rule out an underlying condition like Seborrhoeic Dermatitis.

Can Pityriasis Simplex be cured?

Pityriasis Simplex (dandruff) can be effectively managed and controlled with the right treatment. Medicated anti-fungal and anti-dandruff shampoos are usually very effective. While the condition may recur, consistent scalp care and the right products can keep symptoms well under control.

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Trichologist

Gary Heron

With over 40 years' experience diagnosing and treating hair loss conditions, Gary has helped thousands of patients understand their condition and find the right treatment path.