Scars affect the appearance and in some cases, the function. Scars cause great physical and mental pain to patients, especially scars left after burns, trauma, and surgery. Autologous adipose tissue is the most important treatment in plastic surgery, which is developing fast and widely used in plastic and cosmetic surgery, such as hemifacial atrophy, breast reconstruction, and facial rejuvenation. Adipose tissue contains a large number of adipose stem cells, which have powerful tissue repair and regeneration functions and have more significant effect on the treatment of scars. Intra-scar injection of autologous fat can promote scar softening, reduce scar congestion and pigmentation, and repair scar depressions. Although autologous fat grafting can be used to treat scars, the traditional Coleman method of fat grafting, which extracts large fat particles, tends to block the injection tube when injecting fat with a fine tube, so the obtained fat cannot be injected into the dermis, which makes it difficult to be used for scar treatment. For this reason, we have improved the method by using liposuction tubes with multiple side holes of 1mm in diameter to obtain smaller fat particles, which can be injected into the dermis and scars with 23G and 25G tubes, and can treat small facial wrinkles and scars. Previous: Traditional Coleman liposuction Next: Porous liposuction Case description Female 19 years old, her face was bitten by a dog when she was 2 years old and the scar was formed. The scar was red and hard. After injecting 4ml of tiny particles of fat into the scar, the result was more obvious 18 months after the surgery.