Vitiligo Diagnosis and Treatment in London

Understanding vitiligo

Vitiligo is a chronic condition where melanocytes (the cells that produce melanin) become impaired or are lost in specific skin areas. Without melanin, the skin appears white in well-defined patches. Vitiligo can be subtle at first and becomes more noticeable when surrounding skin tans. It may remain stable for years or progress in phases.

Vitiligo symptoms

• White patches of skin with clear borders (often face, hands, body folds and around openings)
• Symmetrical distribution in many cases (non-segmental vitiligo)
• Whitening of hair in affected areas (scalp hair, eyebrows, eyelashes, beard)
• Possible involvement of lips or genital skin
• In some patients: itching or mild irritation before patches appear (not always)

Types and patterns of vitiligo

• Non-segmental vitiligo: the most common type; often symmetrical and may progress gradually.
• Segmental vitiligo: localised to one region/side; often starts earlier and may stabilise sooner.
• Focal vitiligo: a small number of patches; may remain localised or evolve.

Causes and triggers of vitiligo

Vitiligo is usually multifactorial. Contributing factors may include:

• Autoimmune mechanisms: the immune system can target pigment cells in susceptible individuals.
• Genetics: family history of vitiligo or autoimmune disease can increase risk.
• Triggers: stress, sunburn, friction or skin trauma (Koebner phenomenon), illness, or hormonal changes may precede onset or spread in some people.

Does vitiligo spread — and how quickly?

Vitiligo behaves differently in different people. Some patches remain stable, while others progress in phases. Early assessment helps clarify pattern and stability, which influences treatment choice and expected results. If patches are new, spreading, or affecting visible areas (face/hands), starting an evidence-based plan early may improve the chance of stabilisation and repigmentation.

Vitiligo diagnosis

A dermatologist usually diagnoses vitiligo by examining the skin and distribution pattern. A Wood’s lamp examination can highlight subtle depigmentation and help distinguish vitiligo from other causes of pale skin. In selected cases, blood tests may be recommended to screen for associated autoimmune conditions (commonly thyroid disease). Rarely, a skin biopsy is used if another diagnosis is suspected.

Conditions that can look like vitiligo

Not every pale patch is vitiligo. Other conditions can mimic pigment loss, especially early on. A clinical review helps avoid delays or inappropriate treatment. Differential diagnoses may include post-inflammatory hypopigmentation, fungal infections (tinea versicolor), pityriasis alba, chemical leukoderma, and other pigmentary disorders.

Treatment options for vitiligo in London

There is no universal cure, but many patients benefit from a structured plan to stabilise disease and encourage repigmentation. Suitability depends on distribution, stability, body site, and whether hair within patches has turned white. For the full pathway, see Vitiligo Treatment.

• Topical therapy: anti-inflammatory creams may help early or localised vitiligo, particularly on the face.
• UVB phototherapy: commonly used for more widespread vitiligo; typically requires a structured course and monitoring.
• Targeted UVB / excimer-based options: useful for localised patches. Learn about Excimer UVB.
• Camouflage: specialist camouflage products can reduce contrast and support confidence.
• Maintenance planning: once control is achieved, a maintenance strategy helps reduce relapse risk.

Vitiligo in skin of colour

Vitiligo can be more visually prominent in darker skin tones due to higher contrast. We use pigment-aware strategies, prioritise sun protection, and set realistic expectations for how quickly repigmentation may appear (which can vary by body site and stability).

Living with vitiligo

Vitiligo is not physically harmful, but it can impact confidence and wellbeing. A supportive plan includes realistic timelines, sun protection, and treatment options matched to your goals. Sun protection is important because vitiligo patches can burn easily and preventing tanning can reduce contrast.

Why choose Skinhorizon Clinic London?

• Consultant dermatologist-led diagnosis and management in Maida Vale, serving London including Paddington, St John’s Wood and Hampstead.
• Structured pathway including diagnostic support (e.g., Wood’s lamp) and evidence-based treatment planning.
• Access to light-based treatment options where appropriate, including targeted approaches.
• Clear fee transparency: Pricing & fees.
• Meet your consultant: London dermatologist · Clinic team: Our team.

Your first visit — what to expect

1. Consultation: symptom history, onset, potential triggers, family history and prior treatments.
2. Examination: distribution, stability, and hair involvement assessment.
3. Diagnostics: Wood’s lamp exam; selective blood tests if clinically appropriate.
4. Treatment plan: a tailored approach based on goals, stability and body site.
5. Follow-up: monitoring response and adjusting therapy for best outcomes.

Reviewed by: Dr Mohammad Ghazavi, Consultant Dermatologist
Skinhorizon Clinic, 4 Clarendon Terrace, Maida Vale, London W9 1BZ
Last reviewed: 21 August 2025