Vitiligo: Understanding, Protecting & Managing Pigment Loss

Vitiligo is a chronic autoimmune skin condition that causes patches of skin to lose their natural colour. It is not contagious, not caused by poor hygiene, and not a sign of poor health. It is, however, a condition that requires careful, informed management. At the Institute of Dermatologists, our consultant dermatologists provide expert guidance on understanding vitiligo and caring for skin affected by it.

What is Vitiligo?

Vitiligo occurs when melanocytes, the cells responsible for producing pigment in the skin, stop working properly. Without these cells, the affected areas of skin lose their colour, resulting in pale or white patches that can appear anywhere on the body. The condition most commonly affects the face, hands, and areas around body openings.

Vitiligo is an autoimmune condition. In people with vitiligo, the immune system mistakenly attacks the body's own melanocytes. The exact trigger is not fully understood, but a combination of genetic predisposition, immune system dysfunction, and environmental factors is believed to play a role.

The condition can be unpredictable. For some people, the patches remain stable for many years. For others, new patches continue to develop over time. Vitiligo is also associated with other autoimmune conditions, including thyroid disease and alopecia areata.

Symptoms of Vitiligo

Vitiligo presents as pale or white patches on the skin. These patches have no melanin and therefore no natural sun protection. Common characteristics include:

• Flat, pale or white patches on the skin, most commonly on the face, hands, arms, and feet

• Patches that may begin small and grow or merge over time

• Possible whitening or greying of the hair within affected areas, including the scalp, eyebrows, and eyelashes

• Patches that are symmetrical (affecting both sides of the body) in the most common form of the condition

• No associated pain, itching, or discomfort in most cases

Types of Vitiligo

There are two main types of vitiligo:

Nonsegmental Vitiligo

The most common form. Patches appear on both sides of the body in a symmetrical pattern. They often begin small and can gradually enlarge or spread to new areas over time.

Segmental Vitiligo

Less common. Affects only one side or segment of the body. It tends to develop more rapidly but then stabilise, often without spreading further. It is frequently associated with loss of pigment in the hair within the affected area.

Who Is Affected by Vitiligo?

Vitiligo affects people of all skin types, ethnicities, and ages, though it is often more visually prominent on darker skin tones. The condition typically first appears before the age of 30 and affects men and women equally. A family history of vitiligo or other autoimmune conditions can increase the likelihood of developing it.

The psychological and emotional impact of vitiligo should not be underestimated. Visible changes to skin colour can affect confidence, self-image, and quality of life. At the Institute of Dermatologists, we approach the management of vitiligo with sensitivity and an understanding of its wider impact.

Sun Protection and Vitiligo

Daily sun protection is the single most important step in caring for skin with vitiligo. Skin affected by vitiligo has no melanin and therefore no natural protection against UV radiation. This makes it highly vulnerable to sunburn and long-term UV damage.

SPF must be applied every day, all year round, including in winter and on overcast days. A broad-spectrum SPF 50 is recommended for all exposed areas. Our dermatologists recommend EltaMD UV Clear, which combines zinc oxide for broad-spectrum protection with niacinamide to calm and support the skin barrier. It is available in tinted and untinted formulas.

Managing Vitiligo

There is currently no cure for vitiligo. Management focuses on protecting the skin, slowing the progression of depigmentation where possible, and, in some cases, stimulating repigmentation. Treatment approaches continue to evolve, with JAK inhibitors now emerging as a significant development in the management of nonsegmental vitiligo.

Beyond medical management, gentle, barrier-supportive skincare is beneficial for all skin affected by vitiligo. Avoiding harsh or irritating products helps to keep the skin healthy and reduces the risk of triggering new patches through skin trauma.

Vitiligo and Aesthetic Treatments

Whether aesthetic treatments are appropriate for someone with vitiligo depends on whether the condition is stable or active. Gentle treatments such as anti-wrinkle injections are generally well tolerated when vitiligo is stable. More aggressive treatments, including resurfacing lasers, require careful assessment, as they carry a risk of triggering the Koebner phenomenon: the development of new depigmented patches in areas of skin trauma.

A thorough procedure consultation is always recommended before any aesthetic treatment for patients living with vitiligo.

Frequently Asked Questions

Is vitiligo contagious?

No. Vitiligo is an autoimmune condition and cannot be passed from person to person through contact.

Can vitiligo be cured?

There is currently no cure for vitiligo. However, treatment options to slow progression and stimulate repigmentation continue to advance. JAK inhibitors represent one of the most significant recent developments in vitiligo management.

Do people with vitiligo need to wear sunscreen every day?

Yes. Skin affected by vitiligo has no melanin and therefore no natural UV protection. Daily SPF 50 is essential all year round, applied to all exposed areas, even in winter and on cloudy days.

Can people with vitiligo have aesthetic treatments?

It depends on whether the vitiligo is stable or active. Gentle treatments are often safe when vitiligo is stable. More aggressive treatments carry a risk of triggering new patches. A consultation is always recommended before proceeding.

What is the Koebner phenomenon?

The Koebner phenomenon is when new patches of a skin condition appear on previously unaffected skin following trauma, irritation, or pressure. In vitiligo, this means skin injury can trigger new areas of depigmentation.

Is vitiligo more common in Ireland?

Vitiligo affects people of all ethnicities worldwide. Prevalence estimates vary, but the condition is seen across all skin types in clinical practice in Ireland. While it is often more visually apparent on darker skin tones, it affects people with fair skin too.