Usually, in order to prevent infection, many doctors don't leave body materials in the nose, and recommend ear cartilage materials more. There are three main reasons: 1, the ear cartilage has moderate thickness, moderate hardness and sufficient material, which can be carved into an ideal shape and size and will not be rejected after being implanted into the nose. 2. Taking the cartilage from the ear will not affect the shape of the ear. Later, with the growth and development of the human body, the exact part will gradually grow up, and the incision position will be hidden, which will not be obvious after three months of recovery. 3. It can effectively improve the low round nose and shape the high pointed nose. In addition, if the ear cartilage increases the tip of the nose, the nose will feel more realistic after operation. If a suitable doctor is found for surgery, the pig nose can basically be rotated after operation. Of course, having said so much doesn't mean that the ear cartilage is necessarily better than the expansion material. Expansion materials are also common surgical materials in rhinoplasty, and their stability and safety are obvious to all. I just want to share their advantages and disadvantages here. How to choose depends on my personal situation.