There is like this a patch of pimentation on my shoulder?

Question:

It is like a scar and much darker than my skin. It wasnt there when i was born but one day suddenly, when i was about 12 or so, i noticed it. what could it be? It doesnt deem to fade away by itself> How do i get rid of it?

Answers:
Skin pigmentation disorders occur because the body produces either too much or too little melanin, a pigment that creates hair, skin, and eye color. Melanin protects the body by absorbing ultraviolet light.

In hypopigmentation means the body does not produces enough melanin. Albinism, for example, is an inherited condition that causes a lack of pigment. So people with albinism typically have light skin, white or pale yellow hair, and light blue or gray eyes. Another condition called vitilgo, creates smooth, depigmented white spots on the skin. Vitilgo affects nearly 2% of the population, but it strikes people between 10 and 30 years old more often, and is more evident in people with darker skin.
Skin-lightening creams are available for hyperpigmentation disorders.

There is like this a patch of pimentation on my shoulder?

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