Birthmarks are often harmless, but their origins have puzzled doctors for years. More than 10% of babies are born with some kind of birthmark. Some fade over time, while others stay for life. "Some ...

Medically speaking, birthmarks are coloured marks on the skin that are present at birth or appear shortly afterwards. They are caused by an abnormal growth of melanin-producing cells (melanocytes) or ...

Researchers say they finally know what causes babies to be born with port-wine stain birthmarks and a rarer but related condition that often leads to lifelong struggles with blindness, seizures and ...

Kennedy Krieger researchers discover port wine birthmarks strongly indicate Sturge Weber syndrome, which affects brain ...

Among the most common birthmarks are simple salmon patches. These are present at birth and may occur on the nape of a baby’s neck, where they are called a stork bite. Another common location for a ...