There are many reasons for chest pain, which can be seen in the following analysis: 1, too much mental stress, long time to bear the greater mental stress, will be transformed into physical reactions, when the chest pain suggests that it is time to rest and relax. 2, heart problems, if the left side of the chest pain is likely to suggest heart disease, such as sinus arrhythmia or angina, you need to go to the heart ultrasound to confirm the diagnosis for treatment. 3, trauma. If the chest is hit or compressed, it may lead to painful chest injury. If there is no wound, physical therapy can be used; if there is a wound, anti-infection is needed to stop the bleeding. 4, lymphadenitis, simple inflammation of the lymph nodes can be painful to press, and if the lymph nodes are metastatic from cancer, it needs to be treated in a timely manner. 5, breast disease, both men and women may suffer from breast disease resulting in chest pain.