The causes for a dark skin or complexion could be many. Some of the most common ones are -
Heredity - People who have a dark skin often have children who are dark-skinned too. The genes seem to pass on from generation to generation.
Hyperpigmentation - In this condition the skin produces too much of the pigment melanin, causing the skin to become darker than usual.
Skin disorders - Conditions such as Lichen Simplex Chronicus is a skin disorder that causes severe itching that leaves the skin thick, dark and patchy.
Sun rays - Over exposure to sun causes the skin to tan. This is a natural mechanism, wherein to protect itself from the harmful UV rays of the sun, the skin produces more of the pigment melanin which shields the penetration of UV rays into the skin.
Heredity - People who have a dark skin often have children who are dark-skinned too. The genes seem to pass on from generation to generation.
Hyperpigmentation - In this condition the skin produces too much of the pigment melanin, causing the skin to become darker than usual.
Skin disorders - Conditions such as Lichen Simplex Chronicus is a skin disorder that causes severe itching that leaves the skin thick, dark and patchy.
Sun rays - Over exposure to sun causes the skin to tan. This is a natural mechanism, wherein to protect itself from the harmful UV rays of the sun, the skin produces more of the pigment melanin which shields the penetration of UV rays into the skin.
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