Why Is My Scalp So Itchy?

Quick answer: An itchy scalp is most commonly due to dandruff or seborrhoeic dermatitis, product build-up, sweat, sensitivity to hair products or dyes, or dry skin; persistent itch with redness, scaling or sores should be checked by a doctor.
- Common causes: Yeast, sweat, residue.
- Allergy: Hair dyes can cause reactions.
- Doctor: Psoriasis or infection need treatment.
Frequently asked questions
Does itch mean hair loss?
Not necessarily.
Home remedies?
Gentle washing.
When urgent?
Swelling after dye.
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Related reading
- Is It Dandruff or a Dry Scalp?
- Is Dandruff Contagious?
- What Should You Look For in a Hair Loss Shampoo?
- How Often Should You Wash Your Hair in Malaysia’s Climate?
- Hair loss library: Scalp care
Reviewed by the Folli-Doc team, led by Dr. Steven Goh (6 years’ experience in hair density treatment). This article is general information, not a medical diagnosis; for sudden, patchy or painful hair loss, see a doctor or dermatologist.