Aesthetic standard of nose: the shape of nose varies greatly from race to race. Europeans and Americans regard a high nose as beautiful and look tall and strong. In China, the face is thin, the nose of the frontal bone is generally low and flat, and the alar is small and narrow. The alar of the frontal bone reaches the tip of the nose, which is almost straight in men, slightly concave in women, slightly inclined at the alar and soft in curve. But there is no perfect person, mainly depends on whether the proportion of nose type in the overall face shape is coordinated. According to the characteristics of our nation, some scholars have studied the aesthetic parameters of the nose for reference.

1, the position of the nose on the face: draw a circle with the root of the nose as the center and the distance from the root of the nose to the outer corner of the eye as the radius to show the basic position of the adult nose on the face/

2, the width of the nose The distance between the two nostril side edges is generally equivalent to 70% of the length of the nose. The width of the nasal root is about 1 cm, the tip of the nose is about 1.2 cm, and the height of the nose: it is generally believed that the height of the bridge of the nose at the nasal root is not less than 9 mm, which is about 1 1 mm for women and 12 mm for men. The average height of the medial boundary point (nasal root) of saddle nose patients is about 4 mm

3. Tip height: Generally, the ideal height is equivalent to 1/2 of the length of the nose, 26 mm for men and 23 mm for women. If it is less than 22 mm, the line of the tip of the forehead, the line of the bridge of the nose and the forehead form a triangle, and the most depressed point of the nose root is at the vertex of this triangle. For people with a high nose bridge, the vertex of the triangle is slightly higher than the line connecting the corners of the eyes, and for people with a low nose bridge, it is lower than this line. Most people's nasal roots are at the level of the line connecting the corners of their eyes.

4. The dorsal line of nose is generally parallel to the line from helix to mandibular body.

5. The angle between the forehead and dental floss, and the line between the forehead and the back of the nose, the ideal angle is 3033 degrees.

6, nose and lip angle The angle between the front end of the nose columella and the bottom of the nose and the red lip of the upper lip is generally 90 120 degrees. In patients with saddle nose deformity, this angle is obviously increased, the nose length is obviously shortened, and the abnormal characteristics of nostril upward appear.

7. Under normal fronto-nasal angle, the angle between the back of the nose and the brow is about 65,438 0.20 degrees, which is equivalent to the level of the upper eyelash line and the inner canthus. This angle is related to the curve beauty of the nose, smaller than this angle, and the external nose is prominent; This angle is high, indicating a long nose deformity; Low side short nose deformity

8. The ideal radius of curvature of the nasal tip is 8 12 mm, and the nostrils below 8 mm and above 12 mm are not ideal. The diameter of the nostrils is oval and does not exceed the medial alar foot.

10. The width of the alar is the sum of the connecting lines between the upper part of the columella and the two alar edges, which is on the vertical line of the inner canthus. It is equivalent to the width of the vertical line downward from the corner of both eyes.