Shortness of breath after walking for a while may be related to respiratory diseases or cardiovascular diseases, and can go to respiratory medicine or cardiology for consultation. 1. Respiratory medicine: aggravation of shortness of breath when walking is mostly related to respiratory diseases, such as chronic bronchitis, bronchial asthma, chronic obstructive pulmonary disease, respiratory failure, lung cancer, etc. All of them may have symptoms such as aggravation of shortness of breath, dyspnea, cough, etc., which should be consulted by respiratory medicine in a timely manner. 2. Cardiology: in addition to the aggravation of shortness of breath when walking with respiratory diseases, may also be related to cardiovascular diseases, common such as heart failure, insufficient blood supply to the heart, in addition to walking dyspnea, there will be panic, anterior region of the heart pain performance, should go to the Department of Cardiology in a timely manner for treatment. Walking for a while on the shortness of breath may also have other causes, the appearance of walking shortness of breath, should be early medical consultation, if necessary, consult the guidance desk.