Exercise-induced cough may be caused by cough variant asthma, cold air irritation, upper respiratory tract infections and other causes. 1. Cough variant asthma: patients often have attacks at night or early in the morning, mainly dry cough, cough symptoms can be aggravated after exercise. 2. Cold air stimulation: If you are stimulated by cold air during exercise, it may cause bronchial smooth muscle contraction and coughing symptoms. 3. Upper respiratory tract infection: people with upper respiratory tract infections can experience an increase in inflammatory secretions during exercise, which can lead to an aggravation of coughing. It is recommended that people with exercise-induced coughs go to the hospital in time to clarify the cause of the disease and standardize the treatment under the guidance of the doctor.