Sometimes, the laser destroys the blood vessels that caused the stain, and removes the stain.The targeted heat and light from the laser causes the stain to fade or disappear, without significantly damaging the skin. But there are ways to treat and remove the stains.ĭermatologists can use a laser therapy treatment on the stain to target the blood vessels that didn’t properly form. They also haven’t found any way to stop this blood vessel malformation from happening.īut rest assured – scientists do know that nothing you do during pregnancy can cause baby to develop a port-wine stain.īecause of the way they’re formed, port-wine stains are permanent – meaning they won’t go away on their own. (That’s why port-wine stains are sometimes called capillary malformations.)īut researchers don’t yet know what causes the blood vessels to form that way. Port-wine stains appear when some of baby’s blood vessels – tiny ones called capillaries – don’t form properly under the skin. But they could appear anywhere on the body – including the scalp, where they can be harder to spot. Usually, they appear on the face, neck, arm, or leg. Most of the time, though, they only spread across one side of the body. The stains tend to start out smaller, but get bigger and darker as baby grows. On babies with darker skin, the mark looks purplish-red or reddish-brown.
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