Medical Conditions

Tracheomalacia in Babies

Editorially reviewed | Sources: NIH, Mayo Clinic|Updated June 2026

The short answer

Tracheomalacia is a condition where the cartilage supporting the trachea (windpipe) is soft and floppy, causing the airway to partially collapse during breathing. This creates noisy breathing, a characteristic "barky" or "honking" cough, and sometimes wheezing. It can be congenital (present from birth) or acquired (often from prolonged intubation in premature babies). Most cases of congenital tracheomalacia improve as the cartilage strengthens with growth, typically by age 2-3.

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By Age

What to expect by age

0-3 months

Tracheomalacia may be present from birth or develop in premature babies who required mechanical ventilation. Symptoms include noisy breathing (often a low-pitched rumbling or rattling sound, different from the high-pitched stridor of laryngomalacia), a barky or seal-like cough, and sometimes feeding difficulties. Symptoms typically worsen with crying, coughing, or respiratory infections. Your pediatrician may refer you to a pediatric pulmonologist or ENT for diagnosis.

3-6 months

Symptoms may seem to worsen as your baby becomes more active and breathes harder. Respiratory infections can significantly worsen tracheomalacia symptoms because inflammation further narrows the already compromised airway. These babies may develop more severe wheezing, respiratory distress, or a "dying spell" (brief episode of difficulty breathing) during viral illnesses. Your medical team should have a plan for managing respiratory illnesses.

6-12 months

As your baby grows, the tracheal cartilage gradually becomes firmer. You may begin to notice improvement in the noisy breathing and cough. However, respiratory infections remain a concern and may trigger more significant symptoms than in babies without tracheomalacia. If your baby has been diagnosed with tracheomalacia and develops a cold, monitor breathing closely and follow your doctor's guidance for when to seek care.

12 months+

Most children with congenital tracheomalacia see significant improvement by age 2-3 as the airway grows and the cartilage strengthens. Some children may still have a noisy cough or be prone to more symptoms during respiratory infections. Severe tracheomalacia that does not improve or causes significant breathing difficulty may require surgical intervention (aortopexy or tracheal stenting) in rare cases. Regular follow-up with your pulmonologist is important.

What Should You Do?

When to take action

Probably normal when...
  • Baby has a characteristic barky cough and noisy breathing that has been evaluated and diagnosed as tracheomalacia
  • Symptoms are stable and your baby is feeding, growing, and developing normally
  • Noisy breathing worsens with crying or activity but resolves when calm
  • Symptoms are gradually improving as the baby gets older
Mention at your next visit when...
  • Your baby has persistent noisy breathing or an unusual cough that has not been evaluated
  • Symptoms are worsening rather than improving with age
  • Your baby has recurrent respiratory infections with significant breathing difficulty
Act now when...
  • Baby has a "dying spell" with significant color change, extreme breathing difficulty, or goes limp -- call 911
  • Baby with known tracheomalacia develops severe respiratory distress during an illness that is not improving with usual measures

Sources

Trust your instincts. If something feels wrong, reach out to your pediatrician.

Worrying about your baby means you care. That is a good thing.

My Baby's Head Shape Looks Abnormal

Many babies develop temporary head shape irregularities that are completely normal. A cone-shaped head from vaginal delivery reshapes within days. Mild positional flattening (plagiocephaly) from sleeping on the back is very common and usually improves with repositioning and tummy time. However, head shape changes involving ridges, a persistently bulging fontanelle, or rapid head growth changes should be evaluated to rule out craniosynostosis.

Achondroplasia (Dwarfism) in Babies

Achondroplasia is the most common form of short-limbed dwarfism, affecting about 1 in 15,000 to 40,000 births. It is caused by a mutation in the FGFR3 gene and is usually apparent at birth with characteristic features including short limbs, a larger head, and a prominent forehead. Intelligence is normal. With monitoring for specific complications and supportive care, children with achondroplasia lead full, active, and independent lives.

Adenoid Hypertrophy and Breathing

Adenoids are lymphoid tissue located behind the nose that help fight infection in young children. When adenoids become enlarged (adenoid hypertrophy), they can block the nasal airway, causing chronic mouth breathing, snoring, nasal speech, and sleep-disordered breathing. Enlarged adenoids are most common between ages 2-7 and are a leading cause of obstructive sleep apnea in young children. Treatment ranges from watchful waiting and nasal steroids to surgical removal (adenoidectomy) if breathing or sleep is significantly affected.

How to Advocate for Your Child's Needs

You know your child better than anyone, and your observations matter. If you feel something is not right with your child's development or health, you have every right to ask questions, request evaluations, and seek second opinions. Advocating for your child is not being difficult - it is being a good parent.

Air Quality and Baby Health

Babies and young children are more vulnerable to air pollution than adults because they breathe faster, their lungs are still developing, and they spend more time close to the ground where some pollutants concentrate. The EPA recommends keeping babies indoors when the Air Quality Index (AQI) exceeds 100 (orange level). During wildfire smoke events, keep windows closed, use air purifiers with HEPA filters, and monitor your child for coughing, wheezing, or difficulty breathing. Long-term exposure to air pollution can affect lung development.

Are Allergies Linked to Neurodivergence in Children?

Research has found statistical associations between atopic conditions (eczema, food allergies, asthma) and certain neurodevelopmental differences such as ADHD and autism spectrum disorder. However, having allergies does not mean your child will be neurodivergent, and most children with allergies develop typically. These conditions may share some underlying immune and genetic pathways, but one does not cause the other.