The pain in the middle of the chest when breathing is common in the following diseases: 1, muscle strain, after too strenuous exercise or trauma will lead to muscle damage, breathing muscle will stretch, it will cause pain, you can increase rest, local hot compresses or physical therapy, help relieve symptoms. 2, pleurisy, in the chest there are dirty pleura and wall pleura, there is a shallow in the gap between the two, when there is infection, the formation of adhesion zone, breathing will involve the adhesion zone, the pain will stop. The pain will be caused by the adhesion zone, breathing will involve the adhesion zone, you can take appropriate oral analgesic drugs and give anti-inflammatory treatment, when the pleurisy improves, the pain will stop after the adhesion zone is absorbed. 3, fracture, pain will appear at the fracture end when breathing deeply, you need to take X-ray or CT to clarify. 4, costal chondritis, often caused by the cold, you can properly consume more vitamin-rich food, and hot compresses, which can help to The pain can be relieved. If the pain persists, you need to go to the hospital in time to clarify the cause.