Babies born with tracheomalacia, which can also affect neither the voice box nor the esophagus, may have other health issues like a heart defect, reflux or developmental delay with mild to severe symptoms like noisy breathing.
Babies born with tracheomalacia may have other health issues like a heart defect, reflux or developmental delay. Symptoms can be mild to severe. Symptoms inside the lung include noisy breathing that may get better when you change your baby's position or while he or she is asleep. The same condition can also affect the larynx, which is called laryngomalacia. 
