The causes of children’s coughing on exercise include physiological and pathologic causes, such as asthma, myocarditis and so on. 1. Physiological causes: short exercise time, incorrect exercise posture, too cold or dusty environment can cause children to cough when exercising. Active exercise in daily life, mastering the correct exercise posture, and choosing the right venue when exercising can gradually alleviate the symptoms. 2. Pathological factors: asthma often attacks at night and in the early hours of the morning, coughing will be aggravated during exercise, most of which can be relieved on their own. Myocarditis will lead to insufficient blood supply to the lungs during exercise, and capillary spasm will trigger coughing. Children cough when exercise, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to determine the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.