• Question: how do birthmarks appear

    Asked by nami123 to Ajay, Kate, Kuntal, Pip, Reka on 10 Nov 2016. This question was also asked by ashu2005.
    • Photo: Ajay Mishra

      Ajay Mishra answered on 10 Nov 2016:

      Birthmarks are formed because of the overgrowth of blood vessels under the skin or the overgrowth of pigmented cells of skin.

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