The prosthesis used for rhinoplasty mainly has silicone and expanded body, and its harm is mainly related to the materials selected for rhinoplasty, as follows: 1, silicone rhinoplasty may appear translucent, periosteal contracture, calcification and so on. Calcified silicone gel prosthesis will be hard, although it has no effect on the human body, but it will affect the touch of the bridge of the nose. Candidates who mind this can choose to replace it, otherwise there is no need to replace it. Silicone, as the most common rhinoplasty prosthesis, is easy to sculpt, basically no rejection and infection, very safe. There is currently a saying on the market that silicone implants should ideally be replaced every 5-15 years. However, as long as you are satisfied with the effect and form after rhinoplasty, no matter how many years after the operation, as long as there is no redness, swelling, pain and other uncomfortable symptoms, the silicone gel prosthesis can be placed for life; 2, the harm of expanding body rhinoplasty is that the infection may occur after the operation, but the incidence is very low. So the candidates who use bentonite rhinoplasty, unless need to take out after infection occurs, generally can be placed in the body for life. Expanded body is a non-toxic polymer, there are a lot of microporous, and human tissue compatibility is extremely high, soft texture, stable after rhinoplasty, no sense of fall, impervious to light, the effect is natural, is now commonly used in clinical plastic surgery.