If the two-month-old baby coughs a few times without other abnormal manifestations, it is normal. If the baby exists shortness of breath, poor mental state and other manifestations, is not normal, need to judge according to the actual situation, can not be generalized. Usually, because the two-month-old baby’s respiratory system is not well developed, the airway is relatively narrow, if the baby only occasional coughing, and no other discomfort, mostly considered to be normal, may be too rapid milk, cold air stimulation and other reasons, do not need to worry too much. However, if the two-month-old baby will not only often cough a few times, there is shortness of breath, poor mental state, spitting up, nasal congestion and other manifestations, is not normal, may be upper respiratory tract infection, gastroesophageal reflux, whooping cough and other diseases caused. There are many reasons why a two-month-old baby coughs a few times, so you need to go to the hospital and complete a series of relevant examinations to identify the specific cause.