Generally speaking, the nose of a round face should not be too high; the nose of a long face should be higher and longer; more proportional and coordinated; and the nose of a square face should be wider and thicker in order to match. Male nasal bridge to approximate a straight line is good. For women, a slight concave nose tip with a soft curve is beautiful. The most important thing about the aesthetic view of the nose is that its proportion in the overall shape of the face should be coordinated. According to the research of many foreign experts and scholars, the aesthetic criteria of the nose are defined as 9 aspects. 1. The position of the nose in the face: Taking the root of the nose as the center and drawing a circle with the distance from the root of the nose to the outer canthus as the radius, it can show the position of the nose in the face. In children, the arc of this circle passes through the corner of the mouth; in adults, the arc of this circle passes through the nasal column and the nasal flange. The frontal and lateral views of the nose are in a golden triangle. 2, the length and width of the nose: the length of the nose is 1/3 of the length of the frontal surface, adults are generally 60 ~ 75 mm, the width of the nose (the distance between the lateral edges of the two nostrils) is generally 70% of the length of the nose. The width of the root of the nose is about 10 mm, and the tip of the nose is about 12 mm. 3.Nasal root golden point: located at the intersection of the midline of the nasal root and the line connecting the upper edge of the two eyelids. 4.Nasal dorsal line: generally parallel to the line from the ear wheel to the jaw body. 5, the height of the nose: nasal root height, refers to the vertical height of the nasal root in the line of the inner canthus of the two eyes, can be divided into three types: low flat type: 7 mm or less; medium type: 7 ~ 11 mm; high nasal root type: 11 mm or more. The average is about 11 mm for women and 12 mm for men. Tip height: the ideal tip height is equivalent to 1/3 of the nose length, 26 mm for men and about 23 mm for women. The height of the nasal column: the average male is about 19 mm, the average female is about 11 mm. 6, nasal face angle (forehead to incisal line and forehead to the dorsal line of the nose angle): the ideal 30 ° ~ 33 °; nasolabial angle (nasal small column and the upper lip in the intersection of the angle) is generally 90 ° ~ 120 °; nasal frontal angle (nasal dorsum and frontal bone nasal prominence of the intersection of the angle) normal should be about 120 °. 7, the radius of curvature of the nasal tip: the ideal value is 8 ~ 12 mm. 8.The nostril is oval: the diameter does not exceed the medial angle of the nasal wing. 9.Nasal width mainly refers to the relationship between the maximum width of the nose and the distance between the inner canthus of the two eyes: it can be divided into three categories. Narrow nasal wing: the width of the nose is less than the spacing between the inner canthus of the two eyes; medium nasal wing: the two are almost equal; wide nasal wing: the width of the nose is greater than the spacing between the inner canthus of the two eyes.