If patients have frequent breathlessness, there are several factors as follows: 1. The most common factor is cardiogenic factors, such as patients with coronary atherosclerotic heart disease, unstable angina, myocarditis, pericarditis, endocarditis, infectious heart disease, or patients with obstructive heart disease, at this time will have total breathlessness due to insufficient blood supply. 2. Some respiratory The above symptoms can also be caused by some respiratory factors, such as chronic bronchitis, chronic bronchial dilatation, chronic pulmonary heart disease, chronic obstructive pulmonary disease, or even pulmonary heart disease, pulmonary hypertension, which can also have the clinical symptoms of old breathlessness. 3, if the patient has long-term hypertension, there will also be the above clinical symptoms and performance when hypertension.