Skin pigmentation refers to the discolouration of the skin in certain parts. The colouration of skin is attained on the basis of the concentration of a pigment called melanin present in the skin. This pigment is produced by specialised cells present in the skin. Some affect only patches of skin while the other pigmentation disorders can affect the whole body.
When melanin is produced in more quantity, it makes your skin darker. This can happen in cases of pregnancy, sun exposure and Addison’s disease. Under the production of melanin causes your skin to get lighter. Vitiligo is a condition wherein patches of the skin are not able to produce melanin. Genetic disorders such as Albinism is characterised by the absence of the pigment melanin in the body.
Other things that can cause skin pigmentation are burns, blisters or infections.
The types of skin pigmentation are categorised as
On the basis of appearance and texture, skin pigmentation is differentiated as:
Darkening of the skin can sometimes be spontaneous or it may occur due to environmental factors such as sun exposure or sometimes genetic issues.
The most common reasons are infections or injuries. Although, the more severe conditions are-