Hairline is the dividing line between face and hair root, and its shape affects the coordination of five senses. According to ancient China, it should be the ratio of "three courts and five eyes". The hairline, eyebrow line and nasal bottom line are equidistant, and a face is just five eyes wide. In general aesthetics, high hair, soft standard hairline, clear and clean boundary with forehead, and neither too high nor too low forehead are noble. This is the standard hairline.
Hairline adjustment surgery is different from hairline trimming. Hairline trimming is a method of hair removal, which removes messy redundant hair or short hair and achieves the effect by destroying hair roots and hair follicle tissues, basically the same as the principle of hair removal. The hairline is too low or too high, which should be solved by shaping the hairline.