Wound Dehiscence After Brachioplasty? (photo)

Unfortunately the arm pit is a difficult area to heal because of frequent motion and high normal bacterial counts, sweating, etc. Arm lifts therefore occasionally have problems like this, especially in the axilla (arm pit).
The most common reason would be absorbable sutures that are reactive and being pushed out  through the the skin.
The good news is that your arm lift will heal. It just needs more time.
See your board certified plastic surgeon to be checked.

Thank you for your question regarding wound dehiscence after brachioplasty. Wound dehiscence is very common after an arm lift. It is probably the most common after an arm lift. Areas like this open up because of sweat glands, lymphatics, and areas of high tension. All these contribute to wound openings such as this. It would be best if you were moderately concerned but not highly concerned. Follow the advice of your plastic surgeon. I would suggest the application of a topical antibiotic like bacitracin or mupirocin. I would suggest this be applied twice a day. For the rest of the incision, I would suggest applying betadine once or twice a day to keep the rest of the incision clean. These areas can be showered and can get wet. Getting these wounds wet will help to decrease the bacterial load in the wound. You do not need stitches as this would trap the bacteria and lead to further infection and potentially an even bigger incision opening. I hope this helps to answer your question regarding dehiscence after brachioplasty.
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.)

This does happen from time to time, try to keep your arms up above your heart to decrease swelling, wash with soap and water and apply polysporin and things will close in time. Make sure you are eating a high protein diet