• Question: why do we have birth marks and what are they caused by also how?

    Asked by squidward to Deborah, Euan, Maheen, Rob, Stu on 14 Jun 2016. This question was also asked by sibuna.
    • Photo: Maheen Siddiqui

      Maheen Siddiqui answered on 14 Jun 2016:

      Its not fully understood why birthmarks appear. There are two main types, “vascular” birthmarks which are usually red or pink or purple and are caused by abnormal blood vessels under the skin. The second types are “pigmented” birthmarks, they are usually brown and caused by clusters of pigment cells.

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