Why do we have Birthmarks? + more videos | #aumsum #kids #science #education #children

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Birthmarks are colored marks on our skin which are present at birth or appear shortly afterwards. Birthmarks are of two types, vascular and pigmented.

Vascular birthmarks are caused when a lot of blood vessels clump together or they are stretched wider than usual. Some examples of vascular birthmarks include port-wine stains, hemangiomas and stork bites.

Pigmented birthmarks are generally caused when cells called melanocytes grow together in clusters. Some examples of pigmented birthmarks are moles, Mongolian spots and café au lait spots.

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