What Are the Symptoms of Bronchitis in Babies?

Common symptoms of bronchitis in infants include coughing with phlegm, wheezing and chest tightness, changes in body temperature, decreased appetite, and alterations in mental status. If signs such as cyanosis (bluish discoloration) of the lips or rapid, labored breathing occur, prompt medical evaluation and treatment at a hospital are recommended.

1. Coughing and phlegm production: Initially, the cough is typically dry; as the condition progresses, phlegm develops. Due to infants’ narrow airways, phlegm is difficult to expel, leading to worsening cough—especially at night, upon waking, and during feeding—sometimes resulting in choking or gagging.

2. Wheezing and chest tightness: Airway inflammation causes swelling and narrowing, producing audible rales (gurgling) or wheezing sounds during breathing. Some infants exhibit altered respiratory rhythm; wheezing intensifies after physical activity or crying, and visible changes in chest movement may be observed.

3. Temperature fluctuations: Some infants develop low-grade fever, while a minority experience moderate fever. Others maintain normal body temperature; fever may recur intermittently, with duration and severity varying according to individual physiological factors and increased metabolic demand.

4. Decreased appetite: Upper respiratory discomfort interferes with feeding, reducing intake of breast milk or complementary foods. Choking during feeding is common, often accompanied by mild nausea, resulting in reduced nutritional intake and variable degrees of physical exhaustion.

5. Changes in mental status: In mild cases, the infant’s general condition remains relatively stable; however, as inflammation worsens, irritability and excessive crying increase. Sleep becomes less restful, with frequent awakenings, diminished interest in play or interaction, and an overall state noticeably different from baseline health.

At home, maintain appropriate indoor humidity and avoid exposure to smoke or dust. Encourage frequent, small-volume fluid intake; minimize contact with crowded environments; and closely monitor respiratory patterns and mental status to support gradual recovery of the infant’s airways.