Treacher Collins Syndrome: Causes, Symptoms, and Treatment
Medically reviewed by Harsha Moole, MD, Internal Medicine. Last reviewed: October 23, 2026.
What kind of doctor treats Treacher Collins Syndrome?
A geneticist, a doctor who treats inherited conditions, and a pediatrician, a children's doctor, often lead care. A team of specialists, such as plastic surgeons and hearing specialists called audiologists, usually helps. A direct primary care or concierge doctor can be a first stop for an evaluation and can refer you to a specialist when needed.
What is Treacher Collins syndrome?
Treacher Collins syndrome is a condition that affects how the bones and other tissues of the face grow. It is present from birth. It is rare, and it can be mild or severe. It is also called mandibulofacial dysostosis. Most people with it have normal intelligence.
Symptoms
Signs differ a lot from person to person. Some people are so mildly affected that they are never diagnosed. Common signs include:
- Underdeveloped cheekbones and a very small jaw and chin.
- Eyes that slant downward, sparse eyelashes, and a notch in the lower eyelid.
- Ears that are small, unusually shaped, or missing.
- Hearing loss, which happens in about half of affected people.
- A cleft palate, which is an opening in the roof of the mouth.
- Feeding and breathing trouble in early infancy.
Some people also have teeth that are underdeveloped or out of line. Hearing loss, a cleft palate, or jaw and airway problems can slow speech and language. Some people have vision loss.
Causes and who gets it
Changes in certain genes cause Treacher Collins syndrome. Changes in the TCOF1 gene are the most common cause. These genes help the face form in early development.
With most gene changes, one changed copy of the gene is enough to cause the condition. In many people the change is new, and no one else in the family has the condition. A parent with a mild form may not know it. A parent who has the condition can pass it on in about half of pregnancies. Changes in the POLR1C gene cause a different pattern, where both parents carry a changed gene but usually have no signs. It affects males and females equally.
How doctors diagnose it
Doctors start with a careful exam, a history of the child, and a look at the face. X-rays can show how the jaw and other bones of the face formed. Because other face conditions look similar, many experts suggest genetic testing to confirm the diagnosis. If a gene change is already known in a relative, it can be found before birth. Doctors also check the parents and brothers and sisters, since mild cases are often missed.
Treatment
There is no cure for Treacher Collins syndrome. Treatment is aimed at the problems each person has. A team of specialists often plans care together.
- Hearing care. In most people, special hearing aids that send sound through bone may be used instead of surgery.
- Hearing should be checked early, even before age one, and then every year.
- Surgery to repair a cleft palate, rebuild the jaw, or repair other bones of the skull.
- Children may need many operations, and results vary and may not fully fix every difference.
- Airway care. A sleep study can show how serious a blocked airway is.
- Some severely affected babies need a breathing tube placed in the windpipe.
- Some need jaw lengthening surgery.
- Some babies with feeding trouble need a feeding tube placed in the stomach.
- Glasses or other vision care can help people with eye problems.
- Braces, dental implants, and other dental care can correct tooth problems.
- Speech therapy can also help.
- Genetic counseling is advised for patients and families.
When to see a doctor
The condition is most often seen at birth. Tell your child's doctor about feeding trouble or pauses in breathing during sleep. Genetic counseling can help if the condition runs in your family and you plan to become pregnant.
Call 911 or go to the emergency room if a child has severe trouble breathing, bluish or gray skin, or choking.
How a direct primary care or concierge doctor fits in
A direct primary care doctor charges a flat monthly fee instead of billing insurance, while a concierge doctor usually charges more and often works alongside insurance. Such a doctor can do an evaluation, help keep track of hearing and growth checks, and coordinate visits with the specialists your child needs.
Common questions
Is Treacher Collins syndrome inherited?
It can be, but in many people the gene change is new. A parent who has the condition can pass it on in about half of pregnancies. Genetic counseling can help families understand the condition.
Does Treacher Collins syndrome affect intelligence?
Most people with Treacher Collins syndrome have normal intelligence. Hearing loss, a cleft palate, or jaw and airway problems can affect speech, so early care helps a child reach their potential.
Can Treacher Collins syndrome be cured?
No, there is no cure for Treacher Collins syndrome. Treatment can still help with hearing, breathing, feeding, speech, and the shape of the face.
Does a child with Treacher Collins syndrome need surgery?
Some children do, and some need a series of operations. The kind of surgery and the child's age at surgery depend on how severe the differences are.
Sources
- MedlinePlus Genetics - Treacher Collins syndrome
- National Organization for Rare Disorders - Treacher Collins Syndrome
- MedlinePlus - Treacher Collins syndrome
Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
