what is a birthmark
A birthmark is a skin marking which is present at birth or appears shortly after birth, usually within the first two months of life. Dermatologists divide birthmarks into two main categoriesâvascular âredâ birthmarks and pigmented birthmarks.igmented birthmarks are areas in which the color of the birthmark is different from the color of the rest of the skin. The marks range in color from tan, brown, black, blue, or blue-grey.