Abstract: 【Abstract】 Objective To investigate postoperative complications in and prognosis of patients with axillary osmidrosis after minimally invasive rotary cutting surgery. Methods Clinical data were retrospectively collected from patients with axillary osmidrosis who underwent minimally invasive rotary cutting surgery in the Department of Burn and Plastic Surgery, the Second Affiliated Hospital of Hengyang Medical College, University of South China from January 2012 to January 2022. Clinical efficacy was analyzed, and postoperative complications were investigated. Types of postoperative complications, as well as targeted prevention and treatment methods and follow-up outcomes, were recorded. Results A total of 3 000 patients with axillary osmidrosis （6 000 axillae） were included, comprising 1 180 males and 1 820 females. They were aged 18 - 40 years, with an average age of 25 years. The surgical duration was 30 - 60 minutes, with an average of 48 minutes. During 1 year of follow-up, 5 640 affected axillae （94%） were cured, 360 axillae （6%） were markedly improved, and no axilla showed no response. Postoperative complications included local hematoma in 360 axillae, skin folds in 37 axillae, epidermal abrasion in 370 axillae, skin necrosis in 10 axillae, and hypertrophic scars in 5 axillae. Early removal of hematoma, mechanical stretching of folded skin, enhanced dressing changes for abraded and necrotic skin, and anti-scar treatment with fractional laser, etc., were performed for the aforementioned complications, and all of the complications were relieved. Conclusions The overall incidence rate of postoperative complications was about 13% in patients with axillary osmidrosis after minimally invasive rotary cutting surgery. Strengthening the control of intraoperative details and postoperative care education could effectively avoid the occurrence of related complications.

Key words: Bromidrosis, Rotary cutter, Postoperative complications, Treatment outcome