Hidden pain above the right chest in the middle of the night may be due to local injury, acute pleurisy, lung infection, lung tumor, cardiac disease, etc., and the cause should be identified in a timely manner. 1. Local injury: if the patient has a history of right chest trauma, long-term exertion and sports injury, it may be caused by local muscle and soft tissue injury. 2. Acute pleurisy: If the patient has no history of the above mentioned diseases and has vague pain above the right chest, acute pleurisy should be excluded. 3. Lung infection: if the patient has pain over the right chest with fever and cough, lung infection should be considered. 4. Lung tumor: if the patient has vague pain above the right chest which does not get better, or the pain gets worse gradually, it should be considered that the lung tumor invades the chest wall. 5. Cardiac diseases: such as atypical angina pectoris, early acute myocardial infarction, patients may have vague pain above the right chest, which needs to be clearly diagnosed according to the individual situation and relevant examinations. However, other factors can not be ruled out, it is recommended to consult the doctor in time, the doctor to clarify the cause of the disease, and then give targeted treatment.