How Do You Get Vitiligo? What You Need to Do

Vitiligo is not something you catch from another person. It is an autoimmune condition where your immune system attacks the pigment-producing cells in your skin called melanocytes. The result is white patches that can appear anywhere on your body. No one knows exactly why it starts, but researchers have identified several key factors that increase your risk.

How Do You Get Vitiligo in the First Place?

Vitiligo develops when your immune system mistakenly targets and destroys melanocytes. These are the cells that give your skin its color. When they stop working, the skin in that area turns white.

This is not an infection. You cannot give vitiligo to someone else through touch, saliva, or any other form of contact. The CDC classifies vitiligo as an autoimmune disorder, not a contagious disease.

Research published in the New England Journal of Medicine has shown that vitiligo involves both genetic and environmental triggers. About 30% of people with vitiligo have a close family member who also has it. But having a family history does not guarantee you will develop it.

What Genetic Factors Increase Your Risk?

Scientists have identified more than 30 genes linked to vitiligo. Many of these genes are involved in how your immune system works. The strongest link is to the NLRP1 and PTPN22 genes, which help regulate immune responses.

If you have a first-degree relative — a parent, sibling, or child — with vitiligo, your risk is about 6% compared to less than 1% in the general population. That is a real increase, but it still means most people with a family history never develop the condition.

Having other autoimmune conditions also raises your risk. The American Academy of Dermatology reports that people with vitiligo are more likely to have thyroid disease, type 1 diabetes, rheumatoid arthritis, or alopecia areata. If you already have one autoimmune condition, your immune system is more prone to attacking your own tissues.

What Environmental Triggers Are Involved?

Genetics load the gun. Environment pulls the trigger. This is a common way researchers describe how autoimmune conditions start.

Several environmental factors have been linked to vitiligo onset:

• Severe sunburn — Intense UV damage can stress melanocytes and trigger an immune attack in people who are genetically predisposed.
• Chemical exposure — Certain industrial chemicals, especially those in hair dyes and rubber products, have been linked to depigmentation. A study in the Journal of Investigative Dermatology found that monobenzone, a chemical used in some industrial products, can trigger vitiligo-like depigmentation.
• Physical trauma — A cut, scrape, or other injury to the skin can sometimes trigger a white patch at that site. This is called the Koebner phenomenon.
• Emotional stress — Many people report that their vitiligo first appeared after a period of intense stress. The evidence here is weaker, but stress does affect immune function.

These triggers do not cause vitiligo on their own. They only seem to matter in people who already have the genetic susceptibility.

How Do You Get Vitiligo Diagnosed?

A dermatologist can usually diagnose vitiligo by looking at your skin under a special light called a Wood’s lamp. This lamp makes the white patches glow more clearly, helping the doctor distinguish vitiligo from other skin conditions like tinea versicolor or post-inflammatory hypopigmentation.

In some cases, the doctor may take a small skin biopsy to confirm the diagnosis. Under a microscope, vitiligo-affected skin shows a complete absence of melanocytes.

Because vitiligo is linked to other autoimmune conditions, many dermatologists recommend a blood test to check thyroid function. The American Thyroid Association estimates that up to 15% of people with vitiligo also have thyroid disease. Testing for thyroid antibodies and vitamin B12 levels is also common.

What Treatments Actually Work for Vitiligo?

Treatment for vitiligo is about stopping the immune attack and encouraging repigmentation. No treatment works for everyone, and results vary widely.

Topical corticosteroids are often the first treatment tried. These creams reduce inflammation and can help return color to small patches. The American Academy of Dermatology notes that about 45% of people see some repigmentation with steroid creams, but long-term use can thin the skin.

Topical calcineurin inhibitors like tacrolimus and pimecrolimus are another option. These are especially useful for sensitive areas like the face and genitals. They do not cause skin thinning, which makes them safer for long-term use.

Phototherapy using narrowband UVB light is one of the most effective treatments. A course of treatment typically involves two to three sessions per week for several months. Studies published in the British Journal of Dermatology show that about 70% of people achieve some repigmentation with NB-UVB, especially on the face and trunk.

JAK inhibitors are the newest class of treatment. Ruxolitinib cream (Opzelura) was approved by the FDA in 2022 for vitiligo. Clinical trials found that about 30% of people using the cream achieved at least 75% repigmentation on facial patches after 24 weeks. This is a significant advance, though the medication is expensive.

For people with extensive vitiligo who have not responded to other treatments, depigmentation is an option. This involves using a cream to remove the remaining pigment from unaffected skin, creating a uniform white appearance. This is a permanent decision and not right for everyone.

What Should You Avoid When Managing Vitiligo?

There is a lot of misinformation about vitiligo online. Some claims are harmless but wasteful. Others can be dangerous.

Avoid unproven supplements sold as “cures.” As of 2026, there is no clinical evidence that Ginkgo biloba, vitamin D, or any herbal supplement reverses vitiligo in a reliable way. Some people report improvement, but the studies are small and inconsistent.

Avoid tanning beds. They do not help vitiligo and they increase your risk of skin cancer. The UV light in tanning beds is not the same as the controlled narrowband UVB used in medical phototherapy.

Avoid harsh skin products that contain chemicals like hydroquinone or monobenzone unless your dermatologist prescribes them. These chemicals can cause permanent depigmentation in areas where you do not want it.

Do not assume every white patch is vitiligo. Pityriasis alba, tinea versicolor, and post-inflammatory hypopigmentation can all look similar. A dermatologist can tell the difference.

What you should do: protect your white patches from the sun. They have no melanin to shield them, so they burn easily. Use a broad-spectrum sunscreen with SPF 30 or higher every day. Wear hats and long sleeves when outdoors.

Common Misconceptions About Vitiligo

The most persistent myth is that vitiligo is caused by diet. Some online sources claim that eating certain foods or avoiding others can cure it. There is no scientific evidence to support this. A healthy diet is good for your overall health, but it will not repigment your skin.

Another myth is that vitiligo is related to liver problems or “toxins” in the body. This idea comes from traditional medicine systems, not from modern research. The liver does not cause vitiligo, and detox diets do not treat it.

Some people believe that vitiligo is contagious. This is completely false. You cannot get vitiligo from touching someone who has it, sharing towels, or swimming in the same pool. The only way to develop vitiligo is to have the genetic predisposition and encounter an environmental trigger.

There is also a misconception that vitiligo always spreads. For some people, the white patches stay the same size for years. For others, they spread slowly or quickly. Every case is different, and no one can predict how yours will behave.