A birthmark is a colored mark on or under the skin that's present at birth or develops shortly after birth.Some birthmarks fade with time; others become more pronounced. Birthmarks may be caused by extra pigment-producing cells in the skin or by blood vessels that do not grow normally. birthmark is a colored mark on or under the skin that's present at birth or develops shortly after birth.Some birthmarks fade with time; others become more pronounced. Birthmarks may be caused by extra pigment-producing cells in the skin or by blood vessels that do not grow normally.
Cupid's bow feature on a human lip. The Cupid's bow is a facial feature where the double curve of a human upper lip is said to resemble the bow of Cupid, the Roman god of erotic love. The peaks of the bow coincide with the philtral columns giving a prominent bow appearance to the lip.
A cello bow. In music, a bow is a tensioned stick with hair affixed to it which is moved across some part of a musical instrument causing vibration, which the instrument emits as sound. The vast majority of bows are used with string instruments, such as the violin, although some bows are used with musical saws and other bowed idiophones. Contents.