Small incision subcutaneous trimming is performed in the axilla along the skin folds to trim the sweat glands, hair follicles and subcutaneous fat attached to the dermis under direct vision, while maximizing the protection of the subdermal vascular network, creating good conditions for postoperative wound repair and wound healing. The advantages of this procedure are: 1. The incision along the axillary skin crease is concealed and the scar is small; 2. 6.It has better efficacy and appearance than the current common treatment methods such as scraping, suction, laser and drug injection; 7.It is also effective for axillary hyperhidrosis.