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Melasma is a chronic skin disorder that results in symmetrical, blotchy, brownish facial pigmentation. It can lead to considerable embarrassment and distress.
What causes melasma?
The cause of melasma is complex. The pigmentation is due to overproduction of melanin by the pigment cells, melanocytes, which is taken up by the keratinocytes (epidermal melanosis) and/or deposited in the dermis (dermal melanosis, melanophages). There is a genetic predisposition to melasma, with at least one-third of patients reporting other family members to be affected. In most people melasma is a chronic disorder.
Known triggers for melasma include:
Sun exposure and sun damage—this is the most important avoidable risk factor
Pregnancy—in affected women, the pigment often fades a few months after delivery
Hormone treatments—oral contraceptive pills containing oestrogen and/or progesterone, hormone replacement, intrauterine devices and implants are a factor in about a quarter of affected women
Certain medications (including new targeted therapies for cancer), scented or deodorant soaps, toiletries and cosmetics—these may cause a phototoxic reaction that triggers melasma, which may then persist long term
Hypothyroidism (low levels of circulating thyroid hormone)
Melasma commonly arises in healthy, non-pregnant adults. Lifelong sun exposure causes deposition of pigment within the dermis and this often persists longterm. Exposure to ultraviolet radiation (UVR) deepens the pigmentation because it activates the melanocytes to produce more melanin.
Research is attempting to pinpoint the roles of stem cell, neural, vascular and local hormonal factors in promoting melanocyte activation.
Who gets melasma?
Melasma is more common in women than in men; only 1-in-4 to 1-in-20 affected individuals are male, depending on the population studied. It generally starts between the age of 20 and 40 years, but it can begin in childhood or not until middle-age.
Melasma is more common in people that tan well or have naturally brown skin (Fitzpatrick skin types 3 and 4) compared with those who have fair skin (skin types 1 and 2) or black skin (skin types 5 or 6).
What is the treatment?
There are many treatments for Melasma skin condition.Our solutions ranging from Topical Lotion/Cream, Chemical Peel to using Dermatological Lasers to rejuvenate and restore the patient's skin to the original condition. Please consult with our dermatologist regarding which treatment is suitable for you.