Neonatal macular nevus is a benign congenital tumor of infancy, often located behind the midline of the head, on the neck, on the sacral area, and occasionally on the skin between the eyebrows. It is present at birth and usually disappears on its own within a few months to one year of age. If the skin of the affected area is light red or light blue, it is a neoplastic nevus, and if it is other colors, you should be alert. Secondly, it can be judged by pressing the affected area, that is, when pressing the edge of the neoplastic nevus with fingers, you will see the fading color, and after the fading, the skin color will be similar to the normal color of the surrounding tissues or become pale, and then the skin color will quickly return to its original state after the fingers are released. Neonatal nevus can be clinically classified into various types, as follows: 1. black nevus: usually more common, and whether it needs to be eradicated depends on its growth site; 2. white nevus: medically known as pigment loss, generally manifested as white spots on the skin, with a small number, oval or slightly pointed shape; 3. red nevus: most common as hemangioma 4.Yellow nevus: It is a yellow fatty tumor under the skin, or a light brown patch flush with the skin; 5.Blue nevus: It is a blue or blue-black spot on the skin at birth, mostly on the buttocks or back, which will fade away gradually with age. Treatment of neonatal nevus Once diagnosed as neonatal nevus, treatment can be given according to specific conditions. Most newborn nevi disappear gradually on their own within a few months to one year old, and usually no special treatment is needed. Conservative treatment can be done with micro-ablative treatment modalities such as CO2 laser, cryo or fractional laser. If it does not fade on its own or if conservative treatment is ineffective, it can be surgically removed.