Discomfort in the sternum is often due to several reasons: 1. There may be an injury here, the sternal area is very flat and thin. If this area suffers a direct impact, it is very easy to cause contusions or even fractures, which can lead to significant pain around the sternum. The pain may increase during the patient’s deep breathing. 2, may be due to long-term pressure on the thorax, such as the patient’s long-term prone sleeping position, resulting in long-term pressure here, there may be pain around the sternum. 3, may also be due to internal lesions in the chest, such as patients with angina, myocardial infarction or other diseases within the mediastinum, may lead to sternal 4. This condition is caused by blood-related lesions, for example, during an attack of leukemia, there may be pressure pain in the sternal area.