Psoriasis
Also known as: Plaque Psoriasis
Category: SkinICD-10: L40
Psoriasis is an autoimmune skin disease causing thick, red, scaly patches, often on elbows, knees and scalp.
Symptoms
- Red scaly plaques
- Itching
- Nail changes
- Joint pain in some
Causes
- Immune system overactivity
Risk factors
- Family history
- Stress
- Smoking
- Infections
Complications
- Psoriatic arthritis
- Heart disease risk
Treatment overview
Topical treatments, phototherapy and systemic or biologic medicines for severe disease.
Prevention
- Manage stress
- Avoid smoking and alcohol
When to see a doctor
If patches are spreading or joints are painful.
Specialists who treat it
Frequently asked questions
What are the symptoms of Psoriasis?
Red scaly plaques, Itching, Nail changes, Joint pain in some
What causes Psoriasis?
Immune system overactivity
How is Psoriasis treated?
Topical treatments, phototherapy and systemic or biologic medicines for severe disease.
How can Psoriasis be prevented?
Manage stress, Avoid smoking and alcohol
Medically reviewed by
Medical review pending
Last updated
9 October 2026
Sources
- World Health Organization fact sheets
- ICMR and MoHFW national guidelines
- National Centre for Disease Control (NCDC)
This information is for general awareness and does not replace advice from a qualified doctor. Do not start, stop or change any medicine without medical advice.