Hyperpigmentation
*The article was translated into English using automatic translation. The editors are working on its improvement.
Hyperpigmentation (dyschromia, darkening of the skin) is a condition in which certain areas of the face and/or body become darker than the surrounding skin under the influence of various factors.
The cells responsible for skin pigment are called melanocytes. The number of melanocytes is responsible for skin color: the more melanocytes, the darker the skin. The color pigment depends on genetic characteristics, which provide a different combination of brown, yellow, red and blue color cells.
The brown pigment melanin is produced under the influence of sunlight and ultraviolet radiation and is a natural protective factor for the skin, preventing the harmful effects of ultraviolet radiation on it. Hyperpigmentation, that is, the appearance of dark areas of the skin, occurs as a result of excess production and deposition of melanin.