a lot of plastic surgeons want you to be at a stable weight for 6-12 months before having surgery. I think this is a good idea even if you find a plastic surgeon who doesn't require it. It's very common for people to gain 10-20 lbs after hitting their lowest weight, and supposedly gaining or losing more than 10 lbs after plastic surgery can affect your results.
I got my arms done as soon as I reached my goal weight because the batwings drove me insane. I waited 3 years before I did my lbl/bl because I wanted to make sure I could maintain my weight loss.
Laura in Texas
53 years old; 5'7" tall; HW: 339 (BMI=53); GW: 140 CW: 170 (BMI=27)
RNY: 09-17-08 Dr. Garth Davis
brachioplasty: 12-18-09 Dr. Wainwright; lbl/bl: 06-28-11 Dr. LoMonaco
"May your choices reflect your hopes and not your fears."
I've seen a wide variety here. I'm not sure what the average is!
VSG with Dr. Salameh - 3/13/2014
Diagnosed with Binge Eating Disorder and started Vyvanse - 7/22/2016
Reconstructive Surgeries with Dr. Michaels - 6/5/2017 (LBL & brachioplasty), 8/14/2017 (UBL & mastopexy), 11/6/2017 (medial leg lift)
Age 42 Height 5'4" HW 319 (1/3/2014) SW 293 (3/13/2014) CW 149 (7/16/2017)
Next Goal 145 - normal BMI | Total Weight Lost 170
One suggestion I've heard a few times is to go see a plastic surgeon once you get near to your goal, and ask them when they would recommend doing it. As I understand it, the timing of the surgery might depend on the type of procedure the surgeon will perform, which in turn depends on the shape of your body and how the loose skin is positioned.