Vitiligo: Symptoms, Diagnosis, Causes, Types & Treatment

Vitiligo is a chronic skin disorder characterized by the loss of pigment, resulting in distinct white patches on the body. These patches commonly appear on the arms, hands, and feet, as well as around the eyes and mouth.

The condition occurs when melanocytes, the specialized cells responsible for producing skin pigment, are destroyed or stop functioning. While the exact cause remains unknown, experts believe it is linked to genetic predispositions and autoimmune responses.

Although vitiligo is not contagious, it can significantly impact a person's appearance and self-esteem. Dermatologists typically manage the condition using topical treatments, light therapy, or surgical procedures to restore skin color.

Main symptoms

The primary symptoms of vitiligo include:

• Areas of skin that have lost their natural pigment.

• Milky-white patches with clearly defined borders.

• Patches that appear in round, oval, or linear shapes.

• White patches that may still contain small spots of normal color.

• Premature whitening or graying of the hair on the scalp, eyelashes, or eyebrows.

• Loss of color in the tissues that line the inside of the mouth and nose.

Vitiligo patches most frequently develop on the face, particularly around the eyes and lips, as well as the hands, neck, scalp, and torso. It can also affect the genital area, including the vulva or penis.

Furthermore, these patches often appear on areas of the body that experience frequent friction or trauma, such as the elbows and knees. In some instances, the condition may also involve the eyes or inner ears.

Depending on the underlying cause, other clinical signs may be present, such as an enlarged thyroid (goiter), weight loss, or associations with other conditions like alopecia areata and anemia.

Is vitiligo itchy?

Vitiligo does not typically cause itching or physical pain. Its primary effect is the visible discoloration of the skin through the formation of white patches.

Confirming a diagnosis

A diagnosis is usually made during a clinical exam by a dermatologist who inspects the skin patches. A specialized tool called a Wood’s lamp, which uses UV light, may be used to see the depigmented areas more clearly.

If necessary, a doctor may perform a skin biopsy to confirm the diagnosis and rule out other skin conditions, such as pityriasis alba or certain types of birthmarks.

Physicians may also order blood tests to check for underlying autoimmune conditions or thyroid issues that are sometimes linked to vitiligo.

Is vitiligo contagious?

Vitiligo is not contagious and cannot be spread from person to person. It is not caused by an infection, such as those originating from fungi, bacteria, or viruses.

While the condition does not pose a direct threat to physical health, it can lead to significant psychological distress or social anxiety for some individuals.

Possible causes

While the precise cause of vitiligo is not fully understood, based on information from the National Institute of Arthritis and Musculoskeletal and Skin Diseases, it is widely believed to be an autoimmune disorder where the immune system attacks the body's own pigment cells. Factors such as genetics, severe sunburns, or high levels of emotional stress may also trigger the onset.

These factors lead to the destruction of melanocytes. When these cells can no longer produce melanin, the pigment that provides color, white patches begin to form on the skin's surface.

At what age does vitiligo appear?

Vitiligo can develop at any stage of life. However, it most commonly appears before age 20 and can often manifest during early childhood or even in infancy.

Types of vitiligo

There are several recognized types of vitiligo:

1. Generalized vitiligo

This is the most common form, where white patches appear symmetrically across many different parts of the body.

2. Localized vitiligo

Also known as focal vitiligo, this type involves patches that are limited to one or a few specific areas.

3. Universal vitiligo

This is a rare form where nearly all of the body's pigment is lost, leaving only small patches of normally colored skin.

4. Segmental vitiligo

Also called unilateral vitiligo, this type affects only one side of the body, such as one arm or one side of the face. It is more common in younger people and usually stabilizes after a year or two of progression.

5. Non-segmental vitiligo

In this type, patches appear symmetrically on both sides of the body, such as on both hands or both knees. It often follows a pattern of rapid progression followed by periods of stability.

Treatment options

Treatment is tailored to the individual based on the type of vitiligo, the size of the patches, and their location. The goal is typically to stop the progression or encourage the skin to produce new pigment.

Commonly prescribed treatments include:

• Topical creams or ointments, such as corticosteroids, tacrolimus, pimecrolimus, or calcipotriene.

• Oral corticosteroids or immunosuppressant medications for rapidly progressing cases.

• Phototherapy using Narrowband UVB or UVA light, sometimes combined with a medicine called psoralen (PUVA).

• Laser therapy for small, stable patches of skin.

• Skin grafting, where healthy skin is transplanted to stable white areas, often used for segmental or localized types.

• Melanocyte transplant, a procedure for patches that have been stable for at least a year and haven't responded to other therapies.

In cases of extensive generalized vitiligo, a doctor may recommend depigmentation, which lightens the remaining pigmented skin to match the white patches.

Does vitiligo have a cure?

There is currently no permanent cure for vitiligo because the destroyed melanocytes do not naturally regenerate. However, according to the American Academy of Dermatology, many patients achieve successful results with treatment, and consistent therapy can often stop the loss of pigment and successfully restore color to many of the affected areas.

However, many patients achieve successful results with treatment. Consistent therapy can often stop the loss of pigment and successfully restore color to many of the affected areas.

Possible complications

The most common complications are psychological, as the change in appearance can lead to significant stress, low self-esteem, or depression.

When vitiligo involves the eyes, it can occasionally lead to inflammation, such as iritis or uveitis. If it affects the inner ear, some degree of hearing loss may occur.

Additionally, because the skin lacks the natural protection of melanin, people with vitiligo are at a higher risk for severe sunburns and certain types of skin cancer in the affected areas. Long-term use of topical steroids can also lead to skin thinning (atrophy).