Vitiligo: What it is, Causes, Treatment & More

What is Vitiligo?

Vitiligo is an autoimmune disorder in which the skin begins to lose its natural colour. It occurs when the cells that produce melanin, known as melanocytes, are destroyed or cease functioning. Melanin is the pigment responsible for skin colour, and without it, patches of skin become lighter or even white.

These patches can form anywhere on the body but are most common on the face, neck, hands and skin folds. Vitiligo may also affect hair, causing it to turn white or silver in the affected areas. Initially, the skin patches are smaller, but they can grow larger over time.

What are the Types of Vitiligo?

Vitiligo presents differently from person to person, and understanding which type you have can help guide the right course of treatment. Here are the main types:

How Common is Vitiligo in India?

The prevalence of vitiligo is much higher in India than in many other parts of the world. The reported prevalence of vitiligo among dermatology outpatients in India ranges from 0.25% to 4%, with some regions reporting much higher figures. Prevalence rates of 8.8% have been reported in Gujarat and Rajasthan, among the highest globally.

One of the largest studies on vitiligo conducted in India found an overall institutional prevalence of 0.89% across 30 medical colleges in 21 Indian states, involving more than 4,43,000 patients.

What are the Symptoms of Vitiligo?

The signs of vitiligo can differ depending on the type a person has. Here is a look at the key symptoms associated with each type:

What Causes Vitiligo?

Vitiligo occurs when melanocytes, the cells responsible for producing melanin, the pigment that gives skin, hair, and eyes their colour, die or stop functioning. Without these cells, the skin loses its colour and turns lighter or white.

The exact reason why this happens is not fully understood, but research points to a combination of the following factors:

• Autoimmune Response: The most widely accepted explanation is that the immune system mistakenly identifies healthy melanocytes as a threat and destroys them. This is believed to be the primary cause of generalised vitiligo, the most common type.

• Genetic Factors: Certain genetic mutations can affect how melanocytes function. There are over 30 genes known to increase the risk of developing vitiligo, and a family history of the condition is considered a significant risk factor.

• Stress: Frequent emotional stress or physical stress on the body, particularly following an injury, can affect how much pigment melanocyte cells produce and may trigger or worsen the condition.

• Environmental Triggers: Exposure to ultraviolet radiation, severe sunburn, or certain toxic chemicals can interfere with the functioning of melanocytes and potentially trigger vitiligo.

• Nervous System Involvement: In the case of segmental vitiligo specifically, research suggests the cause may differ from other types and could be related to the nervous system rather than an autoimmune response.

Risk Factors of Vitiligo

Vitiligo can affect anyone, regardless of age, gender or skin tone, but is more noticeable in people with darker skin. The patches usually appear before the age of 30. But there are some things that might make you more likely to develop the condition.

• Family History: If you have a parent or sibling with vitiligo or another autoimmune disease, you have a higher chance of developing vitiligo.

• Pre-Existing Autoimmune Conditions: Autoimmune disorders can raise the risk of developing vitiligo. These include Addison's disease, Type 1 diabetes, lupus, psoriasis, rheumatoid arthritis, thyroid disease and anaemia.

• Chemical Exposure: Repeated direct contact with chemicals containing phenol, such as some types of detergents, has been linked to increased risk.

• Genetics: There are several gene mutations that have been linked to vitiligo and may raise the risk of developing the disease.

• Certain Cancers: People diagnosed with melanoma or non-Hodgkin lymphoma may also be at a higher risk.

What are the Complications of Vitiligo?

While vitiligo is primarily a skin condition, it can sometimes lead to or be associated with other health concerns.

Here are some of the complications that people with vitiligo may experience:

• Sun Sensitivity: Since affected patches lack melanocytes, they have no natural protection against the sun. This makes the skin more prone to sunburn rather than tanning, and strong sunscreen is essential.

• Eye Abnormalities: People with vitiligo may experience some abnormalities in the retina or variations in iris colour. In some cases, inflammation of the iris or the middle layer of the eye (uveitis) may occur, though vision is not usually affected.

• Hearing Loss: Vitiligo has been associated with partial hearing loss (hypoacusis) in some people.

• Predisposition to Other Autoimmune Conditions: People with Vitiligo may be more likely to develop other autoimmune conditions, including hypothyroidism, Type 1 Diabetes, Psoriasis, Rheumatoid Arthritis, Lupus, and Pernicious Anaemia.

• Emotional and Psychological Impact: Vitiligo can affect confidence and self-esteem, particularly when it involves areas of skin that are frequently visible. Some people may experience anxiety, depression, or a tendency to withdraw from social situations.

When Should I See My Healthcare Provider?

If you notice any changes in your skin pigmentation, consulting a healthcare provider early can make a real difference. Consider seeking medical attention if:

• Patches of skin are losing colour at a rapid pace.

• The affected areas are growing larger or spreading across the body.

• The visible nature of the condition is beginning to take a toll on your mental health or quality of life.

How is Vitiligo Diagnosed?

Here is what the process of diagnosing vitiligo typically involves:

How is Vitiligo Treated?

Treatment for vitiligo primarily focuses on restoring the skin's colour and improving its appearance. It is important to note that treatment is not always permanent and may not fully control the spread of the condition.

Here are the main treatment options:

• Topical Steroids: Creams or ointments applied directly to the skin can sometimes slow the spread of white patches and may help restore some of the original skin colour. They are typically prescribed for adults with vitiligo affecting less than 10% of the body.

• Skin Camouflage: Camouflage creams can be applied to affected patches to blend them with the surrounding skin tone, making them less noticeable. These creams are waterproof, available in a range of skin tones, and can last up to four days on the body and 12 to 18 hours on the face.

• Medications: Corticosteroid creams are often prescribed in the early stages of vitiligo and can be effective in helping restore skin colour. Milder formulations may be recommended for children or for those with larger areas of affected skin. For people whose condition is progressing rapidly, corticosteroid pills or injections may also be considered as an option.

• Light Therapy: Phototherapy using narrow band ultraviolet B (UVB) light has been shown to slow or stop the progression of active vitiligo. It is often used in combination with corticosteroids or other medications for better results.

Can Vitiligo be Prevented?

There is currently no known way to prevent vitiligo. Since the condition can arise from a combination of genetic, autoimmune, and environmental factors, eliminating the risk entirely is not possible.

Certain habits can be helpful for reducing the risk or minimising triggers:

• Sun protection and safe sun habits.

• Using a daily moisturiser to keep your skin hydrated.

• Stress management and prevention of unnecessary physical trauma to the body.

• Managing any underlying autoimmune conditions with appropriate medical care.

What is the Prognosis of Vitiligo?

Vitiligo is a lifelong condition with no known cure, but it can be managed effectively with the right treatment. Around 10% to 20% of people with vitiligo do fully regain their skin colour, and this is more likely in those who receive an early diagnosis, experience rapid stabilisation of the condition, or have patches primarily on the face.

Beyond physical symptoms, vitiligo can affect confidence and self-esteem, and speaking with a mental health professional can be genuinely helpful in navigating those challenges.

Does Health Insurance Cover Vitiligo?

Yes, Vitiligo is covered under most health insurance plans in India. However, the extent of coverage depends on the type of treatment that is needed. If the treatment is medically necessary, e.g., to deal with complications or in accordance with a treatment plan prescribed by a dermatologist, it is generally covered, subject to the terms and conditions of your insurer. However, most health plans do not cover procedures that are purely cosmetic or undertaken just to improve the appearance of the skin.

Moreover, if you are diagnosed with vitiligo before the purchase of a health insurance policy, it will be considered as a pre-existing disease (PED). This means that there will be a waiting period of up to 4 years before you can make a claim for vitiligo-related treatment. So, it is always a wise idea to go through the policy documents carefully to understand the coverage and benefits.

How Much Health Insurance Coverage is Needed for Vitiligo Treatment?

Since vitiligo is a long-term condition, the cost and duration of treatment can vary depending on the severity of the condition, the type of treatment required, and how the body responds over time. To manage medical expenses comfortably, it is advisable to opt for a health insurance coverage of around ₹5 lakh to ₹10 lakh, provided the policy includes coverage for vitiligo-related treatments.

For senior citizens or individuals with additional health complications, a higher coverage amount of around ₹15 lakh to ₹20 lakh is generally recommended to ensure better financial protection.