The nose is located in the center of the face and plays an important role in the composition of the appearance. The shape of the nose is mainly determined by the external nose, the Chinese face is more slender, the frontal bone nasal protrusion is generally low and flat, the bridge of the nose is small and narrow for the beauty of the frontal bone nasal protrusion to the tip of the nose, men are similar to a straight line, women are slightly concave curved, the end of the nose is slightly arched, the curve is softer. The external nose is elevated forward in the shape of a long triangular cone, which is divided into three parts: the root of the nose, the bridge of the nose and the tip of the nose. The root of the nose is the bony part of the nose, consisting of two nasal bones and the maxillary nasal protrusion; the bridge of the nose is located in the middle of the root of the nose and the tip of the nose, consisting of the left and right side of the nasal cartilage; the tip of the nose for the end of the nose, mainly consisting of two pieces of nasal cartilage. Each nasal cartilage has a medial and lateral foot. The two medial feet are connected under the tip of the nose to form the nasal columella and the tip of the nose part of the bracket, and the two lateral feet are separated around the tip of the nose to form the two nasal wings. The outside of the nose is covered with skin, the lower third of which is tightly attached to the tissues below, and the upper two-thirds of which is generally loose and elastic. Length: one-third of the length of the face, generally 6 to 7.5 centimeters; Width: the width of the nose is slightly greater than the distance between the medial canthus, with the maximum distance being roughly 70% of the length of the nose; the root of the nose is about 1 centimeter wide, and the tip of the nose is about 1.2 centimeters; Height: the highest point is at the tip of the nose, which is about one-third as tall as the length of the nose; the height of the nose is generally 26 millimeters in men, and 23 millimeters in women; the lowest point of the root of the nose is at the line connecting the two medial canthi. Dorsal nasal line: generally parallel to the line from the alar whorl to the mandibular body. Nasofacial angle: the angle between the forehead to incisor line, and the forehead to dorsal nasal line, the ideal angle is 30-33 degrees. Nasolabial angle: the angle between the anterior end of the nasal columella to the base of the nose, and the base of the nose to the red lip of the upper lip, usually 90-120 degrees. This angle increases significantly, and will appear the characteristics of the nose. Frontal nose angle: the angle formed between the back of the nose and the eyebrow, the normal situation is about 120 degrees, this angle is related to the curve of the nose, smaller than this angle, the external nose protrudes forward; this angle is higher, the long nose deformity, low short nose deformity. Ideal nasal base is equilateral triangle, nostrils are teardrop figure eight, the nose body is in a natural shape, the nose and face and other features in harmony. Types of nasal cosmetic surgery: rhinoplasty, eagle nose, rounded and low nasal tip, high nasal tip, defective nasal tip, rosacea, hypertrophy of the nose, short nasal column, saddle nose, hump nose, short nose, nose reconstruction, etc.