Indications: Most or all of the external nose is defective, and donor tissues such as forehead, upper arm or forearm are healthy. Contraindications: patients with systemic diseases who cannot tolerate anesthesia and surgery; Uncontrolled inflammation exists in the nasal defect area or sinus; There are a lot of scars around the nose defect area. No matter which operation method is used in total nose reconstruction, the flexibility of reconstructed external nose is poor. With the extension of time, the external nose tends to shrink and deform, which can affect the unobstructed breathing in severe cases. Therefore, in addition to implanting L-shaped cartilage or bone scaffold as support during the operation, plaster scaffold and nasal scaffold should be fixed outside the reconstructed nose for two months and one month after the operation, and the friction and injury of the reconstructed nose should be avoided as much as possible within half a year after the operation to prevent scar contraction after re-trauma.