In general, it is possible for a nose that has been augmented with rib cartilage to shrink or change in shape over time. Donor rib cartilage is commonly used in rhinoplasty to augment and shape the nose. While this technique can be effective, it's important to understand that any surgical procedure carries some degree of risk, and the outcome can vary from person to person. In some cases, the body may absorb or reabsorb the cartilage graft over time, leading to a decrease in the size or shape of the nose. Additionally, factors such as the healing process, natural aging, and changes in weight can also affect the appearance of the nose after surgery. It's best to discuss your concerns with your surgeon during a follow-up appointment, as they will be able to evaluate your individual situation and recommend the best course of action. In some cases, revision surgery may be necessary to achieve the desired outcome. Best of luck !