The first choice is to choose a professional and formal beauty institution for rhinoplasty, which is the most basic safety guarantee for rhinoplasty. Through the analysis of the principle of rhinoplasty, I will explain the safety of rhinoplasty for you. According to experts, rhinoplasty removed 1/2-2/3 on the cartilaginous side of the alar, and rotated the lateral foot to the medial side and the cephalic side. At this point, you can see the alar adduction. The cartilage was cut off intermittently at the alar cartilage vault, and it could not be cut off. If the strengthened nostril or transverse nostril cannot become vertical, a wedge resection should be done at the base of the alar; If the nose is not high enough, the cut cartilage can be placed on the surface of the vault to raise the nose. At present, the method of cutting and destroying the sebaceous gland tissue of the nose is mainly used to reduce the volume. Nasal rhinoplasty can destroy dilated capillaries, hyperplastic sebaceous glands and connective tissue, regenerate hair follicle epithelial cells, heal wounds and form normal or nearly normal epidermis, thus achieving the purpose of treatment. Cartilage transplantation rhinoplasty requires a nasal margin incision in the nostril, or an endochondral incision to expose alar cartilage and nasal cartilage, and the cephalad part or caudal part of alar cartilage should be removed as appropriate. The cut cartilage, after cutting and shaping, is stitched on the top of the vault to raise the nose, or the external ear cartilage can be cut for transplantation. In rhinoplasty, the lateral incision of bilateral nasal columella is needed to expose the medial alar cartilage foot and fornix, remove the soft tissue between the two medial alar cartilage feet, and then make mattress suture at the upper and lower ends, that is, close the bilateral medial alar cartilage foot. This method can raise the nose by 2-3 mm.