Infant congenital laryngeal cartilage generally improves gradually with development, and most symptoms significantly improve by age 1 to 2. If symptoms are severe enough to affect breathing or feeding, medical attention should be sought promptly.
Congenital laryngeal cartilage results from immature development of the laryngeal cartilage, causing this part of the structure to resemble a "half-collapsed tent," making the larynx softer and prone to collapse when airflow passes through, thereby producing a laryngeal stridor. This issue often emerges within a few weeks after birth, and some infants may also experience feeding difficulties or respiratory distress. Although it may seem alarming, most babies have mild cases due to narrower respiratory tracts compared to adults and incompletely developed laryngeal cartilage. As the baby ages, the laryngeal cartilage gradually becomes firmer, and the laryngeal stridor diminishes accordingly.
If laryngeal stridor symptoms are severe, such as frequent apnea or significant impact on feeding, they require sufficient attention. The doctor will take intervention measures based on specific circumstances, and a minority of severe cases may require surgery. Parents can observe their baby's behavior, such as whether there is respiratory distress when crying, frequent choking during feeding, and whether the laryngeal stridor worsens in specific positions. If the baby's symptoms are mild, usually no additional treatment is needed, but avoiding exposure to secondhand smoke and maintaining humid indoor air are methods that can help alleviate symptoms.
Once symptoms worsen or feeding is obstructed, it is recommended to visit a pediatrician or otolaryngologist as soon as possible to ensure the baby's healthy growth.
