Location and Fate of Birthmarks A birthmark is a mass of pigment or blood vessels somewhere on a newborn\’s body at birth, which sometimes disappears or fades with age. The location of birthmarks is closely related to the meridians of the human body, which has a certain impact on the fate revealed by birthmarks. The following is a detailed explanation from four aspects. Classification and location of birthmarks According to their shape and location, birthmarks can be divided into pigmented birthmarks and vascular birthmarks. Pigmented birthmarks are mostly formed due to the proliferation or aggregation of melanocytes in the skin, and common ones include freckles, café-au-lait spots, etc. Vascular birthmarks are