Chest pain in men is a symptom that may be related to lung disease, heart disease, pleural disease, breast disease and so on, and does not play a role in predicting disease. 1. Lung diseases: such as pneumonia, tuberculosis and other diseases, can lead to coughing, coughing up sputum, chest pain, fever and other symptoms. 2. Heart diseases: such as coronary heart disease, myocardial infarction and other diseases, can also cause chest tightness, chest pain, shortness of breath and other uncomfortable symptoms. 3. Pleural diseases: such as pleurisy, pleural tumor and other diseases, can also cause chest pain, swelling and other symptoms. 4. Breast diseases: such as breast hyperplasia, breast cancer and other diseases, which can lead to chest swelling, pain, or even discharge and other symptoms. If the above symptoms occur, it is recommended to consult a doctor in time to confirm the diagnosis and follow the doctor’s instructions for treatment.