Axillary surgery is common in clinical practice for the following three major types of diseases: 1) benign tumors on the body surface, such as sebaceous cysts or lipomas, which can be cured after removal by local anesthesia, because they are outpatient surgeries and cost around$1000; 2) axillary sweat gland removal surgery for young patients with axillary odor, which costs around$2000-3000 if the axillary sweat gland is removed in the traditional way, or$4000-5000 if minimally invasive surgery is used. The cost of minimally invasive surgery may be around RMB 4000-5000; 3. If breast cancer metastasizes in the axillary lymph nodes, it usually requires modified radical treatment or radical treatment plus axillary lymph node dissection, and the cost of surgery is usually around RMB 20000-30000.