Have you ever wondered why some people are born with birthmarks and others aren't? What happens when babies are in utero could have an effect on their skin. While many are harmless, others can be a hint of an underlying problem. If you're concerned about one of yours or your children's, watch the video above.
The highlights: There are two categories of birthmarks, vascular and pigmented.
Pigmented birthmarks are usually caused by an increase in melanin in the area where it appears, according to doctors. These are known as moles, cafe au lait spots and Mongolian spots, which tend to vanish by adolescence. And that's almost all experts know about them! None necessarily indicate health issues, but you should always see a doctor if they grow or change color.
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The medical world has more info on vascular birthmarks and their cause, though. The most common of this type are "stork bites." Similar to spider veins, stretching capillaries caused these, and almost half of infants are born with them. They usually fade away within 18 months of birth.
Another common spot found on babies are infantile hemangiomas. Resembling strawberries, these are benign tumors in the cells that line blood vessels. Though they usually only stick around for up to two years, about 10% grow larger over time, and can cause vision, hearing and even cognitive problems. One study from the Pediatric Dermatology Journal found that oxygen depletion in the placenta could prompt these to develop, while research from the Medical College of Wisconsin found that low birth weight is the single largest cause of these birthmarks.
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The last major birthmark is known as the port wine birthmark. They appear as raised red spots on the skin, and like the others they occur when capillaries do not grow correctly. While they may mean nothing, they can also signal Sturge-Weber syndrome, in which a sufferer has abnormal blood vessels throughout the skin, brain and eyes.
If you're seeing raised red spots and experiencing other symptoms like muscle weakness or glaucoma, your birthmark could be a reason to see a doctor. And check all of your moles and spots to make sure they're not changing over time.
From: Woman's Day
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