2, the process of removal When the rhinoplasty fails, the original augmentation must be removed first. Before implanting new materials, in order to make the prosthesis level fully in-depth, the tunnel must be rebuilt on the deep surface of the original tunnel, and the new materials selected by the patients must be implanted into the new tunnel again. Because of the scar left by the first operation, the second operation may bleed more than the first operation, so the postoperative recovery time will be longer; Because the old tunnel is on the shallow surface of the new tunnel, it takes a long time for the two layers of the old tunnel to absorb, so it will look higher than the actual one in the short term.