Method : Inject expansion solution for liposuction (500ml saline + 2% lidocaine 10ml + 5% sodium bicarbonate 10ml) in the subcutaneous fat layer within the range of axillary hair, and inject water until the skin turns white. Use 2.5mm diameter blunt-tipped liposuction needle to suction the subcutaneous fat layer within the range of axillary hair, then use the pointed liposuction needle to cut off the fibrous adhesions under the skin, then use the blunt-tipped needle to suction and scrape under the skin, to pinch the side hole area of the liposuction needle with the thumb index finger across the skin for suction and scraping, after the axillary hair area is suctioned and scraped once, the axillary hair can be easily pulled down at this time. Two fist-sized gauze balls are placed in the armpit and bandages are wrapped in eight characters for ten days. Advantages : This method not only removes the sweat glands in the armpit and treats armpit odor, but also achieves the purpose of eradicating armpit hair, the method is simple and safe and does not leave a scar.