Lifting dumbbells 1 month post gynecomastia surgery?

I generally restrict patient activity for 4-6 weeks post op. However, this regimen will vary from one surgeon to another.With regards to your specific question, soreness after a lay off is to be expected. You are unlikely to have caused any significant/permanent damage after one session. Signs of significant problems are new or worsening (unilateral) swelling or increasing pain (indicative of bleeding > highly unlikely 1 month post op).I would recommend pacing yourself moving forward. Often times, significant pain is the body's way of saying you are not ready.As always, discuss your concerns with a board certified plastic surgeon (ABPS).

Every surgeon has a different post op protocol. If you only had liposuction, you should be fine. Otherwise, you might want to back off on the chest exercise for another couple of weeks or start off with lighter weights and work your way back up slowly. Best of luck. 

If you only had liposuction, then I  allow my patients to go back to the gym within 10 days or so. If you have an open procedure then i have patients wait 3-4 weeks to start aerobics and about 6 weeks before working out with weights or  doing push-ups.