Melasma-freckles(काले दाग) Hyperpigmentation, freckles, and melasma are all common skin conditions that occur when normal amounts of melanin are produced within skin cells, leading to dark pigmented spots, or patches to form on the skin's surface. The stimulated tyrosinase encourages melanocytes to produce excess melanin creating darker pigment
Doctors do not fully understand why melasma occurs. It may be due to the malfunction of the melanocytes (the color-making cells) in the skin, causing them to produce too much color.
As a result, people with darker skin tones are more likely to develop melasma, as they have more melanocytes than people with lighter skin.
Potential triggers for melasma include:
Also, there may be a genetic component to melasma, as people whose close relatives have experienced melasma are more likely to develop it themselves.