The pathogenesis of armpit odor is that the patient’s armpit sebaceous glands develop vigorously, and the sweat glands secrete sweat that is abundant and sticky, which is decomposed by anaerobic bacteria and produces a foul odor. The application of syringe liposuction method of suction, destruction of sweat glands and their secretion ducts, and thus can achieve the therapeutic effect. Armpit odor treatment methods include injection method, laser or ionizer method, surgical excision and many other methods, but all of them have certain shortcomings. This method has an advantage that cannot be compared with other treatments: the surgical scar is not obvious. In general, surgery and laser treatment leave a cord-like scar in the armpit, and sometimes the scar is contracted, which affects the function of upper arm extension. This method has no obvious scar. Moreover, the incision is small, less traumatic, only subcutaneous tunneling, no stripping, retaining the skin and deep vascular nerve compartment, thus no skin necrosis; fast recovery, no wound dehiscence. In contrast, in general surgical excision, due to local tension, sometimes there is wound dehiscence and delayed healing phenomenon. This surgery is only localized sensory retardation and sclerosis, and usually can be recovered in about one month. Fewer complications; quicker recovery; does not cause hair loss, especially suitable for male patients who like to retain hair. After surgery, the armpit retains a certain degree of perspiration, which can play a lubricating role. Swelling anesthesia, easy to operate, less bleeding; short operation time, suitable for outpatient surgery.