Orthognathic surgery affects the nose to a certain extent, because orthognathic surgery itself is not a surgery for the nose, but for the upper and lower jaws and teeth in the mouth, and the main impact is the impact of the face, especially the face shape. However, it cannot be said that orthognathic surgery has no effect on the nose at all. Generally speaking, if a patient with retracted upper jaw will have a higher nose after orthognathic surgery, of course, if a patient with protruding upper jaw will have a higher nose after orthognathic surgery, the nose will go backward, let’s say that orthognathic surgery is a foundation, and the nose is just a building on top of the foundation, so the orthognathic surgery does not affect the nose directly, but it may have a certain effect on the overall height of the nose.