Hidden pain in the middle of the sternum may be a bad symptom caused by costochondritis, suffering from pleurisy, myocarditis and other diseases will also appear this kind of discomfort, it is recommended to consult a doctor in time for examination. 1. costochondritis: costochondritis may cause hidden pain in the middle of the sternum, the pain will be more obvious when the affected area is squeezed or pressed, and the pain will be more intense when performing large upper body movements or coughing violently, and the skin of the affected area will be red and swollen in some patients. 2. Pleurisy: pleurisy can also cause hidden pain in the middle of the sternum, usually coughing, but also cause dyspnea, chest tightness and shortness of breath and other adverse symptoms, some patients will have fever, which will lead to chills, limb weakness and other discomforts. 3. Myocarditis: Hidden pain in the middle of the sternum may also be discomfort caused by myocarditis, patients may experience palpitations, chest tightness and other adverse symptoms, may also cause weakness in the limbs, the onset of blood pressure will lead to a drop or even heart failure. There may be other reasons for this kind of situation, you need to consult a doctor in time, through the appropriate examination to confirm the cause of the diagnosis, and actively cooperate with the doctor for treatment.