Generally, you can go back to working out two to three weeks after breast lift or breast reduction surgery. This depends on how you feel. Do not lift anything that weighs more than five pounds for three weeks. Avoid contact sports for six weeks. If you had breast enlargement with a breast lift, hereafter avoid all exercises which isolate your pectoralis muscles as these can shift the implant toward you armpit. Workouts must stop if you experience discomfort in your breasts or chest. A balance of rest and reduced activity will speed up your recovery.