Newborns with small holes in their ears are considered to have congenital pre-auricular fistulas, which are congenital malformations of the outer ear, usually associated with genetic factors, due to incomplete fusion of some of the structures of the ear during development at the time of the fetus. The depth and length of the fistula varies, almost all of the fistula is connected to the cartilage of the ear cartilage of the cartilage, and most of the openings in front of the ear, usually, there is a preauricular fistula of the baby does not have any symptoms, and do not need to carry out the treatment, but there may be a small amount of dilute mucus, milky white sebum-like things overflowed or localized itchy sensation when you press on the small holes. Remind parents, usually do not arbitrarily squeeze the small hole, and do not poke the small hole with a foreign object, which can easily lead to infection, and redness, swelling, pain, or even pus and other manifestations.