The common causes of chest tightness and occasional coughing are as follows: 1. Cardiovascular diseases: such as heart failure or coronary heart disease, angina pectoris, acute heart attack and other cardiovascular system diseases, the most common symptoms are chest tightness and chest pain, but they are also accompanied by occasional coughing, especially heart failure patients will be accompanied by coughing and coughing pink foamy sputum, etc. 2. Respiratory system diseases: lung infections, especially relatively large lung infections, or acute exacerbation of chronic obstructive pulmonary disease, acute exacerbation of bronchial asthma, interstitial lung disease, and bronchiectasis, will see symptoms of chest tightness and occasional coughing. Patients should undergo further tests to clarify the diagnosis. If it is a cardiovascular system disease, an electrocardiogram, cardiac ultrasound, and cardiac enzyme profile are required to clarify the diagnosis. If it is a respiratory system disease, lung CT, blood count, lung function and some other related tests are needed to make a clear diagnosis.