The pain in the front of the chest bone may be related to the following reasons: 1, there may be thoracic trauma, for example, in a car accident, the front of the thorax received a direct impact or a direct violent blow somewhere, may cause bone contusions or even fractures in the rib cartilage, sternum, etc., at this time, there will be very obvious pressure pain on the injured part, and sometimes may also feel the bone rubbing sensation. 2, may be due to the sternum This disease is often secondary to serious systemic infection or trauma secondary to infection here, and once the attack occurs, there will be very obvious pressure pain in the front of the thorax. 3, may be due to costal chondritis, this disease is usually found in the fourth and fifth rib cartilage on the left and right sides of the sternum, and once inflammation occurs in these parts, there will also be very obvious pressure pain. 4, may be due to blood This may be caused by blood-related diseases, such as leukemia, when there may be sternal pressure pain.