The bone and cartilage of the nose are sculpted to affect the desired change in appearance. This can improve a large "hump", a full nasal tip, a droopy nasal tip, or other displeasing feature. The skin then contours to the new shape of the underlying bone and cartilage. This is accomplished by repositioning the bones in your nose, or building up
certain areas using either nasal cartilage or bones and cartilage from another
body site or other materials. The skin and soft tissue are then reshaped over
the reshaped framework.
Additional information may be found at American Society of Plastic Surgeons: