Right side rib pain is mostly considered pleurisy, trauma, costochondritis, liver and biliary system diseases. 1. Pleurisy: it can be secondary to lung infection, manifested as chest pain, chest tightness, mostly stabbing pain, and the pain is aggravated when taking a deep breath. If it is tuberculous pleurisy, it can also be accompanied by low-grade fever, night sweats and other systemic symptoms. 2. Trauma: there is a clear history of trauma, when the external force acts on the chest wall, it can cause the soft tissue of chest wall to be congested and edematous, and in serious cases, it can lead to rib fracture, which is manifested as pain in the chest, and the pain can be aggravated when the position is changed, and the local lesions or bruises can be seen and swollen. 3. Costal chondritis: related to viral infection or local trauma and other factors, manifested as localized swelling, pain, and may have pressure and pain. 4. Hepatobiliary system diseases: such as cholecystitis, fullness and discomfort in the right upper abdomen after a full meal or eating greasy food, and in severe cases, paroxysmal colic may occur, and the pain may radiate to the back of the right shoulder. Right rib pain can also be seen in other diseases, it is recommended that patients seek medical attention in time to avoid delaying the condition.