The base of the nose is the basal part of the nose that is connected to the upper lip. The base of the nose is divided into the base of the nasal pillars, the base of the nasal wings, and some subdivide into the base of the nasal pillars, the base of the nasal wings, and the base of the nostrils. Autologous cartilage is used to fill the base of the nose, so that the center of the face can be enlarged, and the problem of protruding mouth can be improved indirectly. Among the transplanted materials, nasal septum cartilage is more suitable, but the amount that can be obtained is limited, in addition, auricular cartilage or rib cartilage can also be chosen for use. If you choose an unprofessional organization to carry out this surgery, it can bring certain risks, as follows: 1, infection: due to the possibility of open wounds in this surgery, there is a possibility of infection, once infection occurs, you should go to the hospital in time for a follow-up; 2, the appearance of the unattractive: the nasal base is filled too high, which may lead to the fish mouth mouth shape; filled too low, the effect of the surgery is not obvious; 3, the collection of the ear cartilage after the complications, such as the emergence of pain , bleeding, infection, change of ear shape, incision splitting or scar formation, etc.; complications after collection of rib cartilage, such as the occurrence of pain, bleeding, scar formation in the chest, deformation of the ribs, pneumothorax or pneumonia, etc.; 4, autologous cartilage resorption: leading to reappearance of the concavity; 5, expression stiffness: mainly change the attachment of facial expression muscles. In order to minimize the postoperative risks, patients are recommended to apply local cold compresses within three days after surgery, and anti-infection treatment is routinely carried out after surgery. Avoid external force on the nose within three months after surgery to avoid causing cartilage deformation.