We make a horizontal line through the arch of the eyebrows and a parallel line through the lower edge of the nose. In this way, the two parallel lines divide the face into three equal parts: from the hairline to the line between the eyebrows; between the eyebrows to the lower edge of the nose; the lower edge of the nose to the tip of the chin, the upper, middle, and lower third of each, called the “three courts”. And the “five eyes” refers to the outer corner of the eye to the edge of the hairline on the same side, just the length of an eye, between the two eyes is also the length of an eye, the other side to the edge of the hairline is the length of an eye. This is the “five eyes”. The first People’s Hospital of Jining burn plastic center Kong Xianghong “three courts and five eyes” is the general standard ratio of the face length and width of the human face. The first thing you need to do is to get a good idea of what you are looking for. We make a vertical axis in the middle of the face through the forehead – the tip of the nose – the middle of the person – the chin; in the vertical axis, there must be “four highs and three lows”. “Four highs”: the first is the forehead, the second highest point, the tip of the nose. The third high, the lip bead. The fourth high, the tip of the chin. “Three low” are between the two eyes, the nose and forehead junction must be depressed; above the lip beads, the human mid-groove is depressed, beautiful people are very deep mid-groove, the human mid-ridge obvious; the lower lip, there is a small depression, a total of three depressions. Facial plastic category: mainly refers to various surgeries to change the shape of the face: such as cheekbone grinding surgery, jaw augmentation surgery, jaw angle hypertrophy surgery (square face to melon face), chin horizontal osteotomy forward surgery (correction of small chin), facial liposuction surgery, etc. These surgeries are delicate and require sophisticated surgical instruments, and the plastic surgeon must have both a sculptor-like artistic aesthetic and first-class surgical skills.