Skin
Psoriasis
An immune-related condition causing thickened, scaly plaques.
What is Psoriasis?
Psoriasis is a chronic immune-mediated condition in which skin cells turn over faster than normal, producing thickened plaques with silvery scale. It commonly affects the elbows, knees, scalp and lower back.
Symptoms
- Well-defined, raised plaques with scale
- Itching, tightness or soreness
- Scalp scaling beyond the hairline
- Nail pitting, ridging or separation
- Joint pain or stiffness in some patients
Common Causes
- Immune-mediated inflammation with a genetic component
- Infections, particularly throat infections
- Physical trauma to the skin
- Stress, smoking and alcohol
- Certain medications
Who May Be Affected
Psoriasis can begin at any age and affects men and women equally. A family history is common.
Diagnosis
Diagnosis is usually clinical. A skin biopsy is occasionally needed, and joint symptoms are assessed because psoriasis can involve the joints.
Treatment Options
- Topical therapy for localised disease
- Phototherapy in selected patients
- Systemic or advanced therapy for extensive disease
- Scalp-specific formulations
- Moisturisation and trigger management alongside treatment
Prevention & Skincare Advice
- Keep skin well moisturised to reduce cracking
- Manage stress and sleep where possible
- Avoid smoking and limit alcohol
- Treat infections promptly
When to See a Dermatologist
Consult a dermatologist if plaques are spreading, the scalp or nails are involved, or you develop joint pain.
Frequently Asked Questions
Information on this website is for education only and does not replace an in-person consultation with a qualified dermatologist. Treatment suitability is determined after consultation.
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