Thank you for your question regarding your options regarding the treatment for bat wings or excessive arm skin if you had a mastectomy. A mastectomy should not hinder your ability to have an arm lift, arm reduction, or brachioplasty. You can still have a mastectomy if they did lymph node removal or axillary node removal. It would be best if you discussed these at length with your chosen experienced plastic surgeon. However, you can still have a brachioplasty after a mastectomy whether you choose a crescent, a modified T, full brachioplasty, or brachioplasty down from the armpit to the wrist. These procedures can safely be performed even if you had a mastectomy. Thank you for your question regarding your options regarding the treatment for bat wings or excessive arm skin if you had a mastectomy. I specialize in arm lifts. I hope that I have answered your questions regarding the arm reduction. If you have any more questions regarding the arm lift, arm reduction, brachioplasty or arm crease fat grafting, please contact my office. Since a brachioplasty or arm lift surgery is a difficult procedure, please seek an experienced, board certified plastic surgeon with significant experience performing these types of arm lifts. Do your research. Make sure your chosen plastic surgeon has performed at least 100 arm lifts. Make sure they have the before and after pictures to prove it. Carefully examine their before and after pictures and check their reviews on RealSelf. Sincerely, Dr. Katzen. (“Verified” Plastic Surgeon, President of the American Society of Bariatric Plastic Surgeons, certified by the American Board of Plastic Surgery, Fellow of the International Society of Aesthetic Plastic Surgery, American College of Surgery, International College of Surgery, and American Board of Metabolic and Bariatric Surgery, and member of the American Society of Plastic Surgery, American Academy of Cosmetic Surgery and RealSelf Hall of Fame.)