Understand Melasma, the cause & how to treat it What is Melasma? Ever wondered what those annoying small pigmented marks are that appear on your skin, on your face and neck? They are most likely to be Melasma. Melasma can also be called 'chloasma' or 'pregnancy mask' and is a common skin condition in adults in which brown patches of pigmentation develop. They present themselves as freckle-like spots and larger flat, brown patches on the skin found on both sides of the face,