Low-set ears
Key points
- This condition describes the abnormalities of the shape or position of the external ear (pinna or auricle).
- During fetal development, the outer ear or "pinna" forms at a time when many other critical organs are developing (such as the kidneys).
- In most cases, pinna abnormalities are found by a health care provider during the first well baby exam.
- To determine if the pinna is abnormal, the doctor will conduct a series of measurements with a tape measure.
Alternative names
Pinna abnormalities and low-set ears
Definition
This condition describes the abnormalities of the shape or position of the external ear (pinna or auricle).
Considerations
During fetal development, the outer ear or "pinna" forms at a time when many other critical organs are developing (such as the kidneys). Abnormalities in the shape or positioning of the pinna may be an indication that there are other associated abnormalities present.
Common abnormalities include abnormal folds in the pinna, prominence of the ears, low-set positioning, abnormal rotation of the pinna, and even absence of the pinna.
Many children are born with ears that stick out (protruding ears). Although people may comment on the ear shape, this condition is a variation of normal and is not associated with other disorders. However, low-set ears, absent pinna, and abnormal folds may be associated with various medical conditions.
Common Causes
The following common conditions are associated with low-set and malformed ears:
- Down syndrome
- Turner syndrome
Rare conditions associated with low-set and malformed ears include:
- Treacher Collins syndrome
- Potter syndrome
- Trisomy 18
- Beckwith-Wiedemann syndrome
- Trisomy 13
- Rubinstein-Taybi syndrome
- Smith-Lemli-Opitz syndrome
Call your health care provider if
Call if you notice abnormally shaped or positioned ears.
In most cases, pinna abnormalities are found by a health care provider during the first well baby exam. This exam is usually performed at the hospital, if that is where the baby is delivered.
What to expect at your health care provider's office
The doctor will ask medical history questions, such as:
- Are you aware of any other physical abnormalities?
- Is there any family history of having abnormal-shaped ears?
- Is there a family history of any of the disorders associated with pinna abnormalities and low set ears?
Written and revised by
Andrey Nailor, M.D.
Our doctors write and review articles for accuracy and keep them up to date.
health.am provides general information, not medical advice. Always consult a qualified health professional about your own health.