One of the most common conditions seen today by skin health practitioners is melasma. Melasma is also one of the most stubborn and toughest-to-treat pigment disorders.
This type of hyperpigmentation presents itself in dense patches, often in a symmetrical pattern. It is usually seen on the cheeks, forehead, upper lip and chin, and occasionally on other sun-exposed areas, such as the arms and chest. Melasma is often called chloasma or pregnancy mask when it occurs in pregnant women.
Melasma is more common in women with Fitzpatrick skin types IV-VI because they have more active melanocytes, and 10% of cases do occur in men.