Breast Augmentation Guide — Everything You Need to Know

What Breast Augmentation Actually Is

Breast augmentation (augmentation mammaplasty) is a surgical procedure that places implants behind the breast tissue or chest muscle to increase breast size, alter breast shape, or restore volume lost after weight loss or pregnancy. It is the single most performed cosmetic surgery procedure in the United States, with hundreds of thousands of procedures done each year.

The procedure does not lift the breast — that is a separate surgery called a mastopexy (breast lift). Women with significant ptosis (natural breast droop) who want both size and lift often combine augmentation with a lift in a single procedure. Augmentation alone on a breast with significant natural droop will make the breast larger but will not correct the droop.

Implant Types: Saline vs Silicone

The two main implant fill types are saline and silicone gel. Saline implants are shells filled with sterile salt water after insertion. They are FDA-approved for ages 18+, feel firmer than natural tissue, and if they rupture, the saline is absorbed harmlessly by the body. The rupture is immediately obvious because the implant deflates visibly. Silicone gel implants are pre-filled with cohesive gel that mimics the feel of natural breast tissue more closely. They are FDA-approved for ages 22+. Modern cohesive gel implants retain their shape even if the shell is compromised — these are sometimes called "gummy bear" implants.

The vast majority of augmentation patients today choose silicone gel for its more natural look and feel. Saline is still chosen by some patients who prefer the peace of mind of immediate rupture detection or who are under 22 and therefore ineligible for silicone.

Implant Profiles Explained

Profile refers to how much an implant projects forward from the chest wall relative to its base width. Given the same cc volume, different profiles produce dramatically different shapes:

Moderate profile — wider base, less forward projection. Creates a more spread, natural-looking result. Often chosen for broader chests or patients wanting a subtle augmentation.

High profile — narrower base, more forward projection. Creates the classic round, projecting augmented look. Most common choice for significant size increases.

Ultra-high profile — maximum forward projection, very narrow base. Creates the most dramatic, obviously augmented look with extreme upper-pole fullness. Often chosen by patients specifically seeking the augmented aesthetic.

Placement: Over vs Under the Muscle

Subglandular placement (over the muscle) puts the implant between the breast tissue and the pectoral muscle. Recovery is faster and animation deformity (implant movement when the pec flexes) is not an issue. However, the implant may be more visible and palpable, and capsular contracture rates may be slightly higher.

Submuscular placement (under the muscle) puts the implant partially or fully behind the pectoral muscle. Recovery is longer and more uncomfortable, and the implant may distort during muscle contraction. However, the muscle provides more natural-looking coverage over the implant, rates of certain complications are lower, and mammogram interference is reduced. Most surgeons recommend submuscular placement for patients with limited natural breast tissue.

Recovery and What to Expect

Surgery takes one to two hours under general anesthesia. The first few days involve significant soreness, swelling, and tightness — particularly with submuscular placement. Most patients return to light desk work within a week and resume normal activity within four to six weeks. Strenuous upper-body exercise is typically restricted for six weeks. Implants sit high immediately post-surgery and drop into their final position over three to six months as swelling subsides and tissue relaxes — this is called "drop and fluff."

Final results are not fully visible until three to six months post-surgery. Photos taken at two weeks do not represent final results.

Risks and Complications

Breast augmentation carries surgical risks including infection, bleeding, and anesthesia complications. Implant-specific risks include capsular contracture (hardening of scar tissue), implant rupture or deflation, implant malposition (shifting from original placement), rippling or wrinkling visible through the skin, and changes in nipple or breast sensation. Revision surgery is more common than most patients expect — studies suggest 20–40% of augmentation patients require at least one revision within ten years.