“Normal ear for newborn” have many variations regarding the size and shape, however, generally normal ear, is an ear that consists all the structures (helix, antihelix, tragus, antitragus, scapha / triangular fossa and outer ear canal).
Newborn’s ears and other attributes’ may be spoil due their position in uterus. Since a baby in her early periods cannot develop the cartilage which gives her ears a solid shape, it is not a surprising fact that newborns may born with folded ears or other ear shape disorders.
Newborn Ear Physiology
After the first 6 weeks of the birth, babies maternal estrogen levels starts to disappear. Consequently, the cartilage in the body gets less elastic and tended for changing its shape. Also, in the first weeks of birth, the ear cartilage can be manipulated with non surgical techniques.
A single, small skin tag is a finding that can be seen in physical inception occasionally. It is generally a family attribute and hereditary.
Skin Pits are generally a rare finding that can be seen in physical inspection. They are located in the connection between the ear fold and the face, and they can be one or two sided. 10% of the Asian babies have skin pits. There is a rare relationship between skin pits and Brachio-Oto-Renal Syndrome, hence, these babies hearing tests gets more important. Renal ultrasound does not get recommended to a baby who only has skin pits. Scanning renal abnormalities gets more important when other following abnormalities are present. These additional problems, except other abnormalities in the baby gets more important when a positive family history about deafness, renal pathology or auricular malformations are present or the mother has a gestational diabetes and further detailed research gets advised.