Hidden pain under the ribs on the right side of the back is usually caused by a series of uncomfortable symptoms after nerve or muscle injury, generally consider muscle strain, intercostal neuritis or chronic liver disease. 1. Muscle strain: When there is prolonged exertion in daily exercise and physical labor or excessive muscle movement in a short period of time, it will lead to muscle strain in the muscles of the lower back, which will cause subcostal pain in the right side of the back, which is usually a chronic pain caused by muscle strain. 2. Intercostal neuritis: Intercostal neuritis can also cause hidden pain under the ribs on the right side of the back. Intercostal neuritis is usually caused by inflammation or infection of the intercostal nerves, which will directly cause pain in the muscles and bones around the nerves, thus causing pain around the ribs on the lower back. 3. Chronic Liver Disease: The liver is close to the right side of the lower back ribs, so when people have chronic liver disease or liver damage, the enlargement of the liver, inflammation and tissue damage may also stimulate subcostal pain. In the right side of the back under the ribs hidden pain, should be timely to the hospital, improve the relevant examination, and actively for the cause of treatment.