The concept of muscle weakening due to prolonged reliance on bras primarily applies to the muscles that naturally support the breasts, such as the pectoralis major and minor muscles. Wearing a bra for extended periods may lead to a dependence on the bra's support, potentially causing these muscles to weaken over time.However, in the context of breast lift (mastopexy) or breast augmentation surgery, the dynamics are somewhat different. Here's why:1. Breast lift (mastopexy): During a breast lift procedure, excess skin is removed, and the underlying breast tissue is reshaped to lift and reposition the breasts. The surgery does not directly involve manipulation of the chest muscles. Therefore, muscle weakening due to wearing a bra is not a significant concern in this context.2. Breast augmentation: Breast augmentation surgery involves the placement of implants to enhance breast size and shape. While some surgical techniques may involve partial dissection of the pectoral muscles to create a pocket for the implants, this generally doesn't result in significant muscle weakening. The implants themselves provide additional support to the breasts, which may reduce the strain on the surrounding muscles.That said, wearing a supportive bra following breast lift or augmentation surgery is typically recommended during the initial phases of recovery to provide comfort, minimize swelling, and support the healing tissues. However, there is no evidence to suggest that wearing a bra after surgery will lead to muscle weakening, particularly since the surgical changes to the breast structure are not reliant on muscle support in the same way as natural breast suspension.Ultimately, it's essential to follow your plastic surgeon's post-operative instructions regarding bra wear and other aspects of recovery. They can provide guidance based on your specific procedure, anatomy, and individual needs. If you have concerns about muscle weakening or any other aspect of your recovery, be sure to discuss them with your surgeon for clarification and reassurance.