Why do newborns often experience milk aspiration?

Generally, frequent choking on milk in newborns may be caused by underdeveloped swallowing function, improper breastfeeding posture, gastroesophageal reflux, upper respiratory tract infection, congenital esophageal atresia, and other reasons. It is recommended to seek timely medical attention, identify the underlying cause, and receive symptomatic treatment under a doctor's guidance. Detailed explanations are as follows:

1. Underdeveloped Swallowing Function: Newborns often have poor coordination of swallowing. When feeding, milk may flow into the mouth faster than it can be swallowed, leading to choking. This typically improves as the infant grows older. During feeding, control the flow speed; breastfeeding mothers can press the areola to slow the milk flow, while bottle-feeding infants should use a nipple with a smaller hole. After feeding, hold the baby upright and burp them.

2. Improper Feeding Posture: Lying flat during feeding can cause milk to flow back into the trachea, resulting in choking and possibly vomiting. Adjust the posture by slightly elevating the newborn's head at a 45-degree angle. After feeding, continue holding the baby upright for 20 minutes and avoid laying them flat immediately.

3. Gastroesophageal Reflux: The esophageal sphincter in newborns is often relaxed, allowing milk from the stomach to reflux into the throat, causing choking and possibly regurgitation or refusal to feed. Avoid shaking the infant immediately after feeding. Elevate the upper body by 15 degrees and place the baby on their side. Follow medical advice to use medications such as simethicone emulsion, compound pepsin powder, or probiotics (e.g., Saccharomyces boulardii) to alleviate symptoms.

4. Upper Respiratory Tract Infection: Nasal congestion may cause newborns to breathe through their mouths while feeding, increasing the risk of milk entering the trachea and causing choking, often accompanied by nasal congestion and runny nose. Follow medical advice to use normal saline nasal drops to clean the nasal cavity. If necessary, medications such as pediatric paracetamol promethazine granules, infant cold syrup, or ambroxol hydrochloride oral solution may be used to relieve nasal congestion.

5. Congenital Esophageal Atresia: Abnormal connection between the esophagus and stomach prevents milk from entering the stomach normally, causing it to reflux into the trachea and resulting in choking. This may be accompanied by foaming at the mouth and difficulty breathing. Early surgical intervention with esophageal anastomosis is required to reconstruct the esophageal passage. Postoperatively, follow medical advice to use medications such as cefazolin sodium for injection, vitamin B6 injection, and glucose injection to prevent infection and provide nutritional support.

In daily life, maintain focus during feeding and observe the newborn's facial color. If choking occurs, stop feeding immediately, place the baby on their side, and gently pat their back to clear the nose and mouth. Regularly disinfect bottles and nipples to maintain feeding hygiene, reduce infection risks, and promote healthy growth of the newborn.