There are several reasons for men to have pain in the chest area: 1. If it is found suddenly and is accompanied by chest tightness, palpitations or chest pain with a crushing sensation. This condition may be an acute some heart disease, such as angina pectoris or acute myocardial infarction. 2. If the chest pain is suddenly found, accompanied by chest tightness, shortness of breath or dyspnea, it may be the possibility of spontaneous pneumothorax. This condition can be diagnosed basically by going to the hospital to check the chest X-ray.3. If there is a clear history of trauma, such as pain in the chest after being hit or moving heavy things, it is most common to have contusions or strains in the soft tissues of the chest. If the impact is strong, there may be a rib fracture.4. If there is pain under the sternal process, excluding heart problems, there may be stomach discomfort, such as acute gastritis or gastric ulcer, which is usually accompanied by nausea, bloating or vomiting.