Hidden pain below the right sternum may be caused by overwork, inflammation, trauma, liver problems and other reasons. 1. Overwork: lifting and carrying things that are too heavy in daily life can cause damage to the inter-articular ligaments of the ribs and the joint surfaces of the sternum, resulting in pain. 2. Inflammation: If there is inflammation at the lower part of the right sternum, it will usually be accompanied by fever, elevated white blood cells and other symptoms. 3. Trauma: If the injury is caused by collision, there may be bruising after the collision, which may also cause pain at the collision site, and the pain is manifested as stabbing pain. 4. Liver problems: Since the right lower part of the sternum corresponds to the liver, the pain in the right lower part of the sternum may also be caused by liver problems. In this case, you need to go to the hospital for a blood test to identify the cause of the problem and then carry out symptomatic treatment. When there is a vague pain below the right sternum, it is recommended to pay more attention to rest in general, if the pain is not relieved, we should go to the hospital for examination, and take medication or other treatments under the guidance of the doctor.