Where does the cartilage come from

Common sources include the septum, ear, and rib. Septal cartilage is often preferred when enough is available because it is straight and requires no separate donor site. Ear cartilage is commonly used for tip refinement because it is flexible and naturally curved — the incision behind the ear is well hidden. Rib cartilage may be needed in complex or revision cases when more structural support is required, though it involves a small chest incision.