Whether it is normal for a baby in the month to cough occasionally depends on the baby’s clinical performance, as follows: 1. Normal: If the baby is in good spirits, has a normal appetite and sleeps well after coughing occasionally, it is normal. Because the baby in the month has just left the mother’s womb not long ago, changes in the external environment, such as too high or too low temperature and too fast air flow, can stimulate the baby’s respiratory tract and produce coughing symptoms. In addition, the physiological characteristics of the baby’s stomach are horizontal and the cardia is relaxed, causing gastroesophageal reflux, which can also lead to occasional coughing symptoms. 2. Abnormal phenomena: If the baby occasionally coughs along with fever, accelerated breathing, poor mental state, etc., and hears a purring sound in his throat when breathing, like the sound of phlegm, and frequent spitting up of milk, with symptoms of foaming at the mouth, etc., are abnormal phenomena, it is recommended that Immediately seek medical attention to identify the cause of the disease and give symptomatic treatment.