Pain on pressure at the edge of the right rib arch is most commonly seen in aseptic inflammation of the costal cartilage, strain around the ribs, and trauma to the ribs. 1. Aseptic inflammation of the cartilage of the ribs: generally secondary to colds or other inflammatory infections after the local cartilage aseptic inflammation, will lead to the right rib arch edge pain when pressed, may also have a slight pain when moving. 2. Strain injury around the rib cage: it is mostly seen in long-term bad postural habits or excessive exercise, which leads to minor injury of muscle or fascia, thus causing localized pain when pressing. 3. Rib trauma: for example, rib fracture or bone fracture, you may feel pain at the edge of the rib arch. Right rib arch edge pressure pain may also be caused by other reasons, such as emphysema, osteoporosis, etc. It is recommended to go to the hospital in time, and cooperate with the doctor to actively diagnose and treat.