The post operative pain after breast augmentation is multi-causal; some are surgeon related and some are patient related.
Making the implant pocket sharply and accurately with the electrocautery, minimizing blood loss and contact with the ribs results in significantly less pain after surgery. Women in their late 20's and older and those who had children report much less pain than younger women.
Working your chest muscles will NOT increase the size of the breasts not the amount of pain after breast augmentation. In my opinion, thee is no need to stop your exercises before surgery but you will need to suspend it for a few weeks after your breast augmentation.
To learn everything you need to know about Breast Augmentation, follow the comprehensive link below -
Dr. P. Aldea