Melasma

Melasma is a common, non-cancerous skin condition that causes brown, gray-brown or darker patches of pigmentation, most often on the face. It is usually triggered by a combination of sun exposure, hormonal influences and individual skin tendency, and it can often be improved with careful sun protection and dermatologist-guided treatment.

Overview

Melasma is a common form of acquired hyperpigmentation, meaning that areas of skin produce or hold more pigment than surrounding skin. It typically appears as symmetrical brown, gray-brown or darker patches on the face, especially on the cheeks, forehead, bridge of the nose, upper lip and chin. It may also occur on sun-exposed areas such as the neck and forearms.

Melasma is benign, which means it is not a skin cancer and it does not become cancer. It is also not infectious, so it cannot be passed from one person to another. However, it can be long-lasting, may return after improvement and can be emotionally distressing because it affects visible areas of the skin.

The condition is more common in women, particularly during pregnancy or while using hormonal contraception, but men can also develop melasma. It is seen more often in people with medium to darker skin tones, although it can affect any skin type. Because several different pigmentation disorders can look similar, a dermatologist should confirm the diagnosis before treatment begins.

Symptoms

The main symptom of melasma is patchy skin discoloration. The patches are usually flat, smooth and darker than the person’s natural skin tone. They may look light brown, dark brown, gray-brown or bluish-gray depending on skin type and how deep the pigment is in the skin.

Melasma usually develops gradually and is often symmetrical, meaning similar patches appear on both sides of the face. It does not usually cause itching, pain, scaling, bleeding or crusting. If a pigmented area is raised, rapidly changing, sore or bleeding, another skin condition should be considered and medical assessment is important.

Common locations include:

• Cheeks and cheekbones
• Forehead and temples
• Upper lip, sometimes mistaken for a shadow or moustache-like area
• Bridge of the nose
• Chin and jawline
• Less commonly, neck, chest or forearms

Melasma may darken after sun exposure, during warmer months or during periods of hormonal change. Some people notice fading in winter or after pregnancy, but complete and permanent clearing is not always possible without ongoing preventive care.

Causes & Risk Factors

Melasma develops when pigment-producing cells in the skin, called melanocytes, become overactive. These cells make melanin, the pigment that gives skin its color. In melasma, melanocytes produce extra pigment and may distribute it unevenly, creating visible patches.

Sun exposure is one of the strongest triggers. Ultraviolet radiation and visible light can stimulate pigment production, and even short, repeated exposure may worsen melasma. Heat may also contribute in some people. This is why melasma often returns if sun protection is stopped, even after successful treatment.

Hormonal influences are another important factor. Melasma may begin or worsen during pregnancy, which is why it is sometimes called the mask of pregnancy. It can also be associated with hormonal contraception, hormone therapy or other changes in hormone levels. A family history of melasma increases the likelihood of developing it, suggesting a genetic tendency.

Other possible contributors include certain photosensitizing medicines, irritating skin products, inflammation after cosmetic procedures, thyroid-related conditions in some patients and repeated friction or irritation. Risk is higher in people with darker phototypes because their melanocytes are naturally more active. Identifying personal triggers is an important part of long-term control.

Diagnosis

Melasma is usually diagnosed by a dermatologist through a careful medical history and skin examination. The doctor will look at the pattern, color and distribution of the patches and ask about pregnancy, hormonal medicines, sun exposure, cosmetic products, previous treatments and any symptoms such as itching or scaling.

In some cases, the dermatologist may use a Wood’s lamp or dermoscopy to examine the pigmentation more closely. These tools can help assess whether pigment is mostly in the upper layer of the skin, deeper in the skin or mixed. This can guide expectations, because deeper pigmentation is often slower to improve.

Melasma can resemble other causes of facial hyperpigmentation, such as post-inflammatory hyperpigmentation, sun spots, drug-related pigmentation, lentigines, freckles, certain inflammatory skin conditions or, rarely, early skin cancers. If the diagnosis is uncertain or a spot has unusual features, further evaluation may be needed. A skin biopsy is not routine for typical melasma but may be considered when another condition must be excluded.

Accurate diagnosis matters because aggressive or inappropriate treatments can irritate the skin and make pigmentation worse. A specialist assessment helps match treatment intensity to skin type, pigment depth, lifestyle and risk of recurrence.

Treatment Options

Melasma treatment aims to lighten pigmentation, reduce new pigment formation and prevent relapse. The right approach is decided by a dermatologist after assessing the patient’s skin type, medical history, pregnancy status, pigment depth, previous treatments and personal goals. Treatment often takes time, and improvement is usually gradual rather than immediate.

Sun and visible-light protection is the foundation of all melasma care. Dermatologists commonly recommend daily broad-spectrum sunscreen, protective clothing, wide-brimmed hats and shade-seeking habits. Tinted sunscreens containing iron oxides may be useful for some patients because visible light can worsen pigmentation, especially in darker skin tones.

Topical treatment may include prescription or non-prescription lightening agents, antioxidants, retinoid-type products, exfoliating acids or combinations of these. These products work in different ways, such as reducing pigment production, increasing skin cell turnover or calming inflammation. Some ingredients are not suitable during pregnancy or breastfeeding, so medical guidance is important.

Procedural options may be considered when topical care and sun protection are not enough. These can include chemical peels, microneedling, laser or light-based treatments in selected patients. Procedures must be chosen carefully because excessive irritation, heat or inflammation can worsen melasma, particularly in darker skin. Maintenance therapy is often needed after improvement because melasma has a tendency to recur.

Living With / Prognosis

Melasma is a chronic and manageable condition. Many people achieve visible improvement with consistent sun protection and dermatologist-guided treatment, but recurrence is common if triggers continue. The goal is often control rather than a one-time cure.

Daily habits make a major difference. Applying sun protection every morning, reapplying during outdoor exposure, wearing hats and avoiding peak sun can reduce darkening. Gentle skin care is also important because irritation may stimulate more pigment. Harsh scrubs, strong acids used without guidance and frequent product changes can make melasma harder to manage.

Patients should have realistic expectations. Lightening can take weeks to months, and some areas may fade more slowly than others. Stopping treatment too soon, using unregulated bleaching products or combining too many active ingredients can increase side effects such as redness, burning, peeling or rebound pigmentation.

Melasma can affect self-esteem, social confidence and emotional wellbeing. Supportive counseling, camouflage cosmetics and an individualized care plan may help patients feel more in control. Acibadem International’s multidisciplinary dermatology teams and JCI-accredited hospitals diagnose and treat melasma and related pigmentation disorders for international patients, with treatment decisions based on specialist assessment.

When to See a Doctor

A person should see a dermatologist if new facial pigmentation appears, if existing pigmentation is spreading, or if over-the-counter products have not helped. Medical evaluation is also recommended before using strong lightening creams, peels or laser treatments, because unsuitable treatment may irritate the skin and worsen discoloration.

Prompt assessment is important if a pigmented spot is asymmetrical, raised, bleeding, painful, crusted, rapidly enlarging or changing in color. These features are not typical of melasma and may suggest another skin condition that needs different care.

Pregnant or breastfeeding patients should consult a doctor before using any medicated skin product. People taking hormonal medicines, photosensitizing medicines or treatment for other medical conditions should also seek advice, as management may need adjustment.

Regular follow-up helps monitor response, side effects and recurrence. A dermatologist can modify treatment over time, introduce maintenance strategies and ensure that the skin barrier remains healthy throughout therapy.

Frequently asked questions

What is melasma?

Melasma is a common skin pigmentation condition that causes darker, flat patches, usually on the face. It is benign and not contagious, but it can be persistent and may return after treatment.

What causes melasma on the face?

Melasma is usually caused by a combination of sun or visible-light exposure, hormonal influences and genetic tendency. Pregnancy, hormonal contraception and certain medicines or skin irritation may contribute in some people.

Can melasma go away on its own?

Melasma may fade after pregnancy or after stopping a hormonal trigger, but it does not always disappear completely. Even when it improves, it can come back with sun exposure or other triggers, so prevention remains important.

What is the best treatment for melasma?

There is no single best treatment for everyone. A dermatologist may recommend sun protection, topical lightening treatments, maintenance skin care or carefully selected procedures depending on skin type, pigment depth and medical history.

Does sunscreen help melasma?

Yes. Daily broad-spectrum sunscreen is one of the most important parts of melasma care because ultraviolet radiation and visible light can worsen pigmentation. Tinted sunscreen may be especially helpful for some patients because it can also block visible light.

Is laser treatment safe for melasma?

Laser or light-based treatment may help selected patients, but it is not suitable for everyone. If the wrong device or settings are used, irritation and heat can worsen pigmentation, so these procedures should only be considered after dermatologist assessment.

Is melasma dangerous?

Melasma itself is not dangerous and does not turn into cancer. However, any pigmented spot that changes quickly, bleeds, becomes raised or looks unusual should be checked by a doctor to rule out other skin conditions.

References

• American Academy of Dermatology Association
• British Association of Dermatologists
• European Academy of Dermatology and Venereology
• DermNet New Zealand
• Mayo Clinic

This article is for general information only and is not a substitute for professional medical advice. Please consult a qualified doctor about your individual situation.