Updated 2026-09-29 · Educational only, not a diagnosis
Medical facts, drug details and treatment options on this page have not been independently medically reviewed.
What it is
An immune skin condition that forms thick silvery plaques on the scalp. Scratching and heavy scale can cause temporary shedding.
Who gets it
About half of people with psoriasis have scalp involvement.
Signs to look for
- Thick, well-defined silvery plaques
- Extends beyond the hairline
- Itching
Common causes and triggers
- Immune system
- Genetics
- Triggers: stress, infection, injury
How it is diagnosed
- Clinical exam
Treatment and care options
These are the options commonly discussed. What suits you depends on your diagnosis — a dermatologist can help you choose.
- Coal tar or salicylic acid shampoos
- Prescription topicals, light or systemic therapy
Outlook
Hair typically regrows once plaques are controlled.
When to see a doctor
For diagnosis and prescription treatment.
Not sure what's behind your thinning?
This content is for educational purposes only and is not medical advice. It is not intended to diagnose, treat, cure or prevent any disease. Speak with a qualified healthcare professional about your individual situation.