There are many reasons for sternal pain, including the following: 1, sternal pain may be caused by heart disease, generally common sternal pain may be angina or due to heart attack and other diseases, this situation should be promptly to the hospital to do electrocardiogram and heart CT examination, can be clearly diagnosed; 2, sternal pain may be caused by lung disease, generally appear pleurisy, bronchitis and other diseases After the occurrence of pleurisy, bronchitis and other diseases, the phenomenon of hidden pain in the sternum will appear. At this time, you should go to the hospital for a chest X-ray to make a diagnosis; 3, the hidden pain in the chest may also be caused by some tumor diseases, such as some tumors in the chest or sternal tumor diseases, which will also lead to the appearance of hidden pain in the sternum. This situation should go to the hospital for a careful examination in time to identify the cause of the disease. The hidden pain in the chest may also be caused by diseases such as chondritis or tympanitis, which are often related to trauma.