Blowing air conditioning chest pain may be related to costochondritis, cardiovascular disease, respiratory tract infections and so on. 1. Costal chondritis: it may be caused by trauma, strain, inflammation, tumor and infection, often manifested as rib pain, chest tightness and rib cartilage pressure. Cold stimulation when blowing air conditioner may induce or aggravate chest pain and discomfort. 2. Cardiovascular disease: If the patient himself suffers from cardiovascular disease such as coronary heart disease, in the cold stimulation, because of coronary artery stenosis, occlusion leading to myocardial ischemia occurs, resulting in angina pectoris symptoms, manifested in blowing the air conditioning caused chest pain symptoms. 3. Respiratory tract infection: blowing air conditioning cold may cause respiratory tract infection, under the stimulation of inflammation, may cause the occurrence of pleurisy, resulting in the phenomenon of chest pain. It is recommended to go to the hospital to check the symptoms of chest pain when blowing air-conditioning, and find out the cause of the chest pain under the guidance of the doctor’s treatment.