Why am I developing stretch marks along my brachioplasty incision? (photos)

Hello Jess717, thank you for your question. Congratulations on undergoing
a brachioplasty. I seriously doubt that these are stretch marks. It appears
from the photos and history that you provided, that your arms are still
swollen. I would suggest at least another 2-3 weeks of good arm compression.
The arm compression garments should be worn 24/7, and should extend from the
armpit down to the mid forearm. I believe these marks will go away with time
and compression. You may also benefit from having an upper arm massage.

Sincerely,

J. Timothy Katzen, M.D.

The changes you're seeing are fairly common after brachioplasty and are usually related to localized swelling around the incision.  They are rarely permanent and are more related to the very slow scar healing process associated with the procedure.  It's very important to realize that while the arm contour changes from brachioplasty are immediate and dramatic, the scar healing process can take years.  You can expect the arm scar to evolve and change slowly, but substantially over the next several months.  It is certainly beneficial to use scar treatment programs including silicone gels or strips, moisturization and massage at a minimum after surgery.  More intensive treatment with lasers, ulthera or other techniques is occasionally necessary.  It looks like you have a very nice result - congratulations! 

Brachiaplasty incisions respond to activity and movement. In our office, we initiate a scar management protocol after brachiaplasty to ensure that the scars heal nicely.  Topical application of Plato's Scar Serum is a first line treatment. Best, Dr. Karamanoukian