The possibilities for access to insert breast implants depend upon the type and size of implant to be inserted, and any concomitant procedures performed. Saline-filled breast implants are often filled after insertion, can be easily inserted, and often require very small access incisions. Silicone implants are inserted in a fully inflated state, and may require slightly larger incisions. Form stable devices generally require larger incisions. That being said, usually a 3-4 cm incision is adequate for most implants, and can be well camouflaged if planned correctly.
One possibility to consider with your surgeon is the insertion of the implant through your axilla. A small tunnel is dissected from a well-hidden incision in the axilla to allow insertion of the implant beneath the pectoralis muscle. Sometimes this requires the use of an endoscope, or surgical telescope inserted through the same incision.There are limits as to the size of implant that can be inserted through this incision, and saline implants are particularly amenable to this approach.
Another possibility is to place the access incision along the border of the nipple-areolar complex and the skin of the breast. The coloration and texture of this area helps to camouflage the surgical scar. Usually a small, curvilinear scar beneath each areola is sufficient access.
Alternatively, implants can be inserted through an incision in the junction of the breast's inferior pole and the chest wall. In most women, this scar is hidden below the breast, and covered by a bra or bikini. However, it is more visible when the patient lies down, or when viewed from below, as there is no natural pigmentation to hide the scar.
A newer, and less-commonly applied technique for breast implant insertion is performed at the same time as the tummy-tuck. The implants are inserted through the incision used to slim the abdomen. The only scar is hidden in the suprapubic region, which is usually covered by underwear or bikini bottoms. This approach is only employed if the patient is having an abdominoplasty along with the breast augmentation. This technique is referred to as TABA or transabdominoplasty breast augmentation.
The best access incision for breast augmentation varies between patients, breast and implant types, presence or absence of other breast procedures such as mastopexy presence of other scars on the breast or abdomen, and the size of the implant to be inserted.