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What are birthmarks?


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Birthmarks:1:a blemish on the skin that is formed before birth.

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The cause of most birthmarks is unknown. They can be inherited, but usually are not, and are unrelated to trauma to the skin.

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Birthmarks may be the result of excess pigment cells in a small area, or tiny blood vessels that overgrow or expand in the skin.

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Birthmarks are made up of malformed pigment cells or blood vessels. Thanks for asking ChaCha!

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Birthmarks are pigmented maldevelopments of the skin that vary in size, either present at birth or developing later.

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