article_snippet: Doctors have reassured The family of the little boy, who lives in Johannesburg in South Africa, that the markings will gradually fade with time.
article_snippet: We did not worry about it, My youngest daughter doctor said it will fade as My youngest daughter gets older.'
article_snippet: According to NHS Choices, birthmarks come in two main categories, vascular or pigmented.
article_snippet: Vascular birthmarks tend to occur in the head or neck area, being caused by abnormal blood vessels in or under the skin, which can fade after a few months.
article_snippet: In comparison, pigmented birthmarks are tan or brown-coloured, caused by a cluster of pigment cells.
article_snippet: Most birthmarks are harmless and don't need to be treated.