Hidden pain inside the right chest may be caused by pleural disease, lung disease, digestive disease and other reasons. 1. Pleural disease: when suffering from right pleurisy, due to the stimulation of inflammation, the symptoms of vague pain in the right chest may appear. 2. Lung diseases: if the patient has occupying lesions in the right lung, such as lung cancer, etc., the malignant tumor may invade the chest wall and involve the intercostal nerves, which may cause vague pain inside the chest. 3. Digestive diseases: when cholecystitis is in acute attack, radiating pain may occur, and vague pain in the right chest may occur. It is recommended to go to the regular hospital in time, to clarify the cause of the disease, and standardize the treatment under the guidance of the doctor, so as not to delay the condition.