Patients feel something blocking in their chest, which is actually a manifestation of chest tightness. This symptom may be caused by the following reasons: 1. Respiratory diseases, if the patient is accompanied by coughing, coughing phlegm, fever and other symptoms, it may be caused by inflammation of trachea and bronchus, or it may be caused by infection in the lung, etc. 2. If the patient, in addition to the symptoms of chest tightness, also has symptoms such as elevated blood pressure, palpitations, chest pain, etc., it may be caused by coronary angina, arrhythmia and other In this case, it is recommended that patients should go to the hospital for chest X-ray and electrocardiogram examination in order to make a clear diagnosis. If it is caused by inflammation of the respiratory tract, it can be treated with antibiotics and other drugs. If it is caused by cardiovascular disease, it is necessary to take vasodilator drugs for treatment. It is recommended that if patients have chest tightness, they should go to the hospital in time for relevant examinations to clarify the diagnosis and treat the symptoms.