Even if the chest muscle is well developed recovery after breast augmentation should be smooth and reasonably comfortable. The majority of breast implants placed in breast augmentation are positioned under the chest muscle, the pectoralis, for several reasons. The coverage of the upper edge of the implant will produce and smooth an natural contour and reduce the risk of roundness which can appear even through clothing. Also, by placing the implant under the muscle the implant has a tendency to stay softer with less risk of capsule contracture. There is a downside however. For those who are passionate about body building or competitive sport, flexion of the chest muscle will push the implant lower and distort the shape of the breast. Most will find that the benefits of submuscular augmentation outweigh the side effects, but for a few, subglandular augmentation with a silicone gel implant may be a better solution. Be sure to discuss both options. Best of luck, peterejohnsonmd