The costal cartilage is the anterior end of each rib, located on the ventral side of the rib, and serves as a protective support. Rib cartilage is the front end of each rib, flat and round, composed of hyaline cartilage, located in the ventral side of the rib, lifelong not ossified. Rib cartilage is transparent cartilage, the human body has 12 pairs of ribs, left and right symmetrical, back and vertebrae connected to the front 1 to 7 ribs through the rib cartilage and the sternum connected to the rib cartilage is connected to the ribs and the sternum of the bridge. The 8 to 10 ribs are connected to the previous rib through the costal cartilage. The rib cartilage is also felt by pressing down on both sides of the raphe, which together form a barrel-like skeleton structure that protects the heart and lungs. The costal cartilage is highly resistant to compression, and together with the ribs, it forms a bony structure that supports the thorax, providing protection and support. Clinically, rib cartilage can be cut and transplanted as free graft for the repair and reconstruction of cartilage injury in the wrist joint. Please pay attention to the protection of rib cartilage, avoid trauma, and consult a doctor if you feel unwell.