A 7-year-old boy with a cough that does not stop from time to time is considered to be caused by cough variant asthma, acute upper respiratory tract infection, pneumonia, and so on. 1. Cough variant asthma: the main symptom is usually cough, aggravated by exercise or in the morning, usually not accompanied by mucus, pus sputum, etc. The main symptom is cough, aggravated by exercise or in the morning. 2. Acute upper respiratory tract infection: the natural course of the disease is usually 7 to 14 days, the typical symptoms are cough, nasal congestion, runny nose, some may be accompanied by fever. 3. Pneumonia: Symptoms of pneumonia mainly include coughing, coughing up sputum, some children may be accompanied by fever, mucus sputum or purulent sputum. Especially in the case of Mycoplasma pneumoniae infection, sometimes it just manifests itself as a violent cough. Seven-year-old boy coughing from time to time, there are other reasons, it is recommended to consult a doctor in time to identify the cause of the disease, if necessary, with the doctor’s treatment.