Vitiligo is a long-term condition where pale white patches develop on the skin, caused by a lack of melanin, and that missing melanin is exactly why the patches burn. The NHS states it directly: the pale areas of skin are more vulnerable to sunburn, so it is important to take extra care in the sun and use a sunscreen with a high protection factor.

In a country with intense year-round sun, that turns sun protection from a cosmetic preference into the central practical measure. Melanin is the skin’s own protection, and on a vitiligo patch there is none.

Key takeaways

  • The patches have no natural sun protection, so they are more vulnerable to sunburn and need high-SPF cover.
  • It is a loss of melanin, the pigment in skin, not a growth or an infection.
  • It is not contagious and causes no discomfort, though patches may occasionally itch.
  • The most common type is thought to be autoimmune, where the immune system destroys the melanocytes that make melanin.
  • There is a thyroid association. Vitiligo is linked with other autoimmune conditions including an overactive thyroid.
  • Skin damage can trigger it. Severe sunburn or cuts can provoke new patches, known as the Koebner response.
  • The white patches are usually permanent, and there is no way to predict how much skin will be affected.
  • It commonly affects face, neck and hands, and skin creases.

What does vitiligo look like, and where does it appear?

Pale white patches, most often on the face, neck and hands, and in skin creases.

The NHS describes vitiligo as a long-term condition where pale white patches develop on the skin, caused by the lack of melanin. It can affect any area, but commonly the face, neck and hands, and skin creases. Areas around the mouth and eyes are frequently involved.

Patch edges may be smooth or irregular, and are sometimes red and inflamed, or show brownish discolouration around them. The condition does not cause dryness or discomfort, though patches may occasionally be itchy.

There are two main types:

  • Non-segmental vitiligo, also called bilateral or generalised, is the more common. Symptoms often appear on both sides of the body as symmetrical white patches, including the backs of hands, arms, and skin around body openings such as the eyes.
  • Segmental vitiligo, the less common type, is thought to be caused by chemicals released from nerve endings in the skin that are poisonous to the melanocytes.

How far it spreads varies greatly. Some people get only a few small white patches, others get larger patches that join up across large areas, and the NHS is explicit that there is no way of predicting how much skin will be affected. The white patches are usually permanent.

Why does the sun matter so much here?

Because melanin is what protects skin from ultraviolet damage, and a vitiligo patch has none of it.

This is the single most practical fact about living with vitiligo in this climate. The pale areas are more vulnerable to sunburn, and the NHS advice is to take extra care in the sun and use a high SPF sunscreen.

There is a second reason, and it compounds the first. Skin damage, such as severe sunburn or cuts, is a recognised trigger for vitiligo, a phenomenon called the Koebner response. So sunburn on a patch is not only painful, it can provoke further depigmentation. Protection is both treatment and prevention.

Practically:

  • High-factor broad-spectrum sunscreen on affected areas, applied properly and reapplied.
  • Cover up: hats, long sleeves, shade in the middle of the day.
  • Take particular care after swimming, since water removes sunscreen and reflects light.
  • Treat cuts, grazes and burns promptly rather than letting them become the next trigger.

Tanning is worth ruling out explicitly, and DermNet puts the reason in one sentence: depigmented skin can only burn on exposure to ultraviolet radiation; it cannot tan. So sun exposure darkens the unaffected skin without touching the patches, which increases the contrast and makes the condition more visible, while delivering pure damage to the skin that cannot defend itself.

What causes it?

In the more common type, the immune system attacking the cells that make pigment.

The NHS explains that non-segmental vitiligo is thought to be an autoimmune condition. In autoimmune conditions the immune system does not work properly, and instead of attacking foreign cells such as viruses, it attacks the body’s own healthy cells and tissue. In vitiligo, it destroys the melanocyte skin cells that make melanin.

Risk factors for the non-segmental type include:

  • other family members having it
  • a family history of other autoimmune conditions
  • having another autoimmune condition yourself
  • having melanoma or non-Hodgkin lymphoma
  • particular genetic changes linked to non-segmental vitiligo

Triggers can include stressful events, such as childbirth, and skin damage, as above.

Should I have my thyroid checked?

It is worth raising, because vitiligo is associated with other autoimmune conditions including an overactive thyroid.

The NHS notes that vitiligo is associated with other autoimmune conditions such as hyperthyroidism, while being careful to add that not everyone with vitiligo will develop these conditions. That hedge matters: an association is not a prediction, and this is not a reason for alarm.

But it is a reason to mention vitiligo when you see a doctor about anything else, and to take symptoms of thyroid disease seriously rather than dismissing them. The overlap is exactly the kind of connection that gets missed when a skin condition and a fatigue complaint are raised at different appointments with different people. Thyroid symptoms and testing are covered in thyroid problems.

What can treatment achieve?

It can improve appearance for some people, and expectations should be set honestly.

Treatment options depend on the type, how much skin is affected and where, and they include topical treatments such as steroid creams and calcineurin inhibitors like tacrolimus, which is often used on the face where prolonged steroid use is undesirable. Light therapy is used for more extensive disease, under supervision. Camouflage cosmetics are a legitimate option rather than a lesser one, and for some people they are the whole answer.

Depigmentation therapy is a very different approach, removing the remaining pigment to even the skin tone rather than restoring it. DermNet describes it as using 20% monobenzyl ether of hydroquinone (MBEH), and states it may be considered in severely affected, dark-skinned individuals with vitiligo that has failed to re-pigment spontaneously or with therapy. That is a narrow group and a specialist decision, and it is the opposite direction of travel from every other treatment here, so it warrants careful discussion rather than a quick choice.

Two things worth being clear about. Repigmentation, where it happens, is usually gradual and often partial, and results vary widely between people and between body sites. And the white patches are usually permanent, which is the NHS’s own framing, so treatment is about improvement rather than cure.

What about the part that is not medical?

The visible nature of vitiligo affects people out of proportion to its physical symptoms, and that is worth naming.

Vitiligo causes no pain and no illness in itself. It can still have a significant effect on confidence, particularly when it affects the face and hands, and particularly on darker skin where the contrast is greater. That is a legitimate reason to seek treatment, not a vanity, and it is a legitimate thing to raise with a doctor.

Do and don’t

Do:

  • Use high-factor broad-spectrum sunscreen on affected skin, consistently.
  • Cover up and seek shade in the middle of the day.
  • Treat cuts and burns promptly to avoid triggering new patches.
  • Mention vitiligo when seeing a doctor about other symptoms.
  • Ask about camouflage options alongside medical treatment.

Don’t:

  • Don’t tan to even out the difference; it increases contrast and damage.
  • Don’t expect a cure, and be sceptical of anything promising one.
  • Don’t use potent steroid creams on the face without supervision.
  • Don’t dismiss the psychological effect as unimportant.

Frequently asked questions

Is vitiligo contagious? No. It is a loss of pigment cells, in the common form driven by the immune system. It cannot be passed to anyone.

Will it spread? It varies greatly and cannot be predicted. Some people have a few small patches that stay stable; others develop larger areas that join up. The NHS states plainly that there is no way of predicting how much skin will be affected.

Does it hurt? Generally no. Vitiligo does not cause discomfort such as dryness, although patches may occasionally be itchy. The main physical risk is sunburn on unprotected patches.

Where to go next

The skin care category lists what is stocked here, and vitiligo approaches it from the diagnosis. Since sun exposure is central, and since another pigmentary condition is driven by the same light, melasma covers the opposite problem of too much pigment rather than too little.

MedicForce option: our skin listings show active ingredient and strength, which matters for topical treatments where potency and site of use go together.

  • Vitiligo, NHS symptoms, the two types, the autoimmune explanation, risk factors and triggers, and the sun protection advice.
  • Vitiligo, DermNet a fuller clinical reference, including why depigmented skin can only burn rather than tan, and the depigmentation therapy option and who it is considered for.