Hidden pain in the right upper rib cage may be caused by trauma, intercostal neuralgia, localized lesions and other factors. 1. Trauma: If the right upper rib is hit by external force or fall, it may cause localized hidden pain. 2. Intercostal neuralgia: when there is a tumor or inflammation in the chest, it may stimulate the intercostal nerves and cause vague pain in the rib area. 3. Local lesions: If there are occupying lesions in the rib area, such as cysts, tumors, etc., they may compress the local nerves and cause hidden pain in the rib area. It is recommended to go to the hospital immediately for examination to identify the cause of the pain and take targeted treatment for the symptoms of hidden pain in the right upper rib cage.