Scientists find mutation that results in red or purple marks Breakthrough described as 'complete game changer' Condition could now be prevented in children

By Nick Mcdermott

PUBLISHED: 01:55 EST, 9 May 2013 | UPDATED: 03:48 EST, 9 May 2013

Genetics: Birthmarks may become a thing of the past thanks to the efforts of researchers in the U.S. File picture

Unsightly birthmarks that affect thousands of newborns each year could soon be eradicated.

Scientists have found a genetic mutation which is responsible for port wine stain marks, and claim the discovery is a 'complete game changer' which they hope will lead to new preventative treatments.

One in every 300 children born in Britain has the condition which results in red or purple marks on the body, most commonly on the neck or face.

They are caused by the abnormal development of blood vessels in the skin, and the birthmark may become thicker, darken and develop a raised appearance in later years.

A research team in the U.S. has now proved the condition occurs because of a gene mutation, which occurs after conception.

Although laser treatment can lighten their appearance, the birthmarks are not curable. The genetic mutation discovered by researchers at Kennedy Krieger Institute in Baltimore is also responsible for Sturge-Weber syndrome (SWS), a rare disorder that affects the eyes and brain, and is associated to port wine stain.

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Genetic breakthrough means birthmarks could soon be eradicated

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