Just measure the length and width of your face. The width refers to the width of the chin on both sides, and the length refers to the length from the mouth to the eyebrows and cheeks, not the entire head. Then you can determine the face shape through the proportions. The corresponding standard for each face shape is as follows:

Oval face length:width=1:1

Round face length:width=2:3

Long face is long : Width=3:2

Inverted triangle length: Width=3:2

The upper part of the face is composed of the maxilla, zygomatic bones, temporal bones, frontal bones and parietal bones Arc-shaped structure, the lower part depends on the shape of the mandible. These are all important factors that affect face shape. The jawbone plays an important role in determining the basic structure of the face. Face shapes can be classified through different classification methods, and there are differences between face shapes when viewed from the front and from the side.

Extended information:

Different face shapes give people different feelings: elegant, cheerful, sad. Even among people of the same age, some are very young and some are very old-fashioned.

The facial features of people with an inner face are concentrated towards the middle. The distance from both sides of the eyes to the outline of the face is long, and the cheek area is also wider, which makes the face look quite big. People with outward-shaped faces have their facial features stretched outward, which makes them feel flat and not outstanding enough.

For people with an upper face shape, the facial features are concentrated in the upper half, and the distance from the cheek to the chin is very long. People with lower faces have very high and wide foreheads, and their facial features are concentrated toward the lower half. She looks cute and childish.

With a hanging face, the eyebrows, lower corners of the eyes, and corners of the mouth all hang upward, which will give people a fierce look and look a bit tacky. The eyes and cheeks of a droopy face fall downwards, and the lower lip is very thick, which always gives people a tired look, making them look older.

Baidu Encyclopedia--Face shape