Patients arrive at my office having decided on a size. Almost nobody arrives having thought about where the implant will sit.
The second one matters more, which surprises people. Where the implant sits affects how the result reads to the eye, how rough your first week is, which complications you’re exposed to, and whether the whole thing still looks right in ten years. Size is mostly about how big you look.
There are three pockets in use, and choosing between them is less about preference than most patients expect.
The three positions
Subglandular puts the implant between your breast tissue and the pectoralis major. The muscle isn’t touched. Everything covering the implant is your own skin, fat and gland.
Submuscular lifts the pectoralis off the chest wall and slides the implant underneath. The muscle then drapes over the top and inner portion of the implant like a curtain.
Dual plane starts submuscular, then releases the lower attachment of the muscle in a controlled way. You get muscle coverage where it’s visible, up top, and tissue coverage below where the breast needs to drape naturally. In practice, when most surgeons say “under the muscle,” this is what they’re describing.
Almost all of my cosmetic augmentations are dual plane. Full submuscular is mainly a reconstruction technique.
The measurement that decides it
Before any of this comes up, I do something simple: I pinch the tissue at the top of your breast between thumb and forefinger.
That measurement tells me more about the right pocket than anything you could describe to me.
More than 2 cm of tissue. You have a real buffer. Both positions are genuinely on the table, and the decision can turn on other things: how quickly you want to recover, whether animation bothers you, what you do at the gym.
Less than 2 cm. Your own tissue won’t hide an implant on its own. Going above the muscle here is how patients end up seeing implant edges in the mirror at year three. I’d recommend dual plane or submuscular, and I’d say so even if you’d prefer otherwise.
That pinch also drives implant choice, which is covered in our guides to implant size and implant profile. Coverage, volume and projection all pull on each other, so we tend to settle them in the same conversation rather than one at a time.
Over the muscle: where it works
This is the simpler operation. I lift the gland off the muscle, make a pocket between the two, and put the implant in. Nothing gets divided or stretched.
What you get for that:
- An easier first week. No muscle has been stretched, so the soreness is milder and shorter
- No animation deformity, ever. The implant has no relationship to the pectoralis, so flexing does nothing to it
- A result you can judge quickly. There’s no muscle that needs to relax, so what you see at three weeks is close to final
- Full chest strength preserved, which matters to some athletes and trainers
What you give up:
- Camouflage. In a lean patient the implant edge and any shell folding show through more readily, which is the main driver of implant rippling
- Support. The full weight sits on skin and gland. Over years, particularly with larger implants, that tissue stretches
- Mammogram clarity. The implant sits in front of the chest wall rather than behind muscle, so radiologists often need extra displacement views
This is a good choice for a woman with a generous tissue envelope, or one with heavily developed pectorals who would find animation intolerable.
Under the muscle: where it works
Here I elevate the pectoralis, release its lower fibers in a controlled way, and place the implant beneath it.
That extra layer buys you a lot:
- The upper pole gets a vascularized layer of muscle over it, which is precisely where a sharp implant edge would otherwise show. It produces the gradual collarbone-to-nipple slope that people mean when they say “natural”
- Rippling and surface irregularity are far less visible
- Published series consistently show lower rates of capsular contracture with submuscular placement
- The implant is displaced backward against the ribs, which leaves more breast tissue accessible for imaging
The costs are real too:
- A harder first week. The muscle has been stretched and it protests
- Animation deformity is possible. Contract the pectoralis hard and the implant can shift or flatten temporarily
- Patience. The muscle holds everything high at first, and the drop-and-fluff settling runs three to six months
- A small, usually unnoticeable reduction in peak chest-press strength
What I actually recommend, and why
For most first-time cosmetic augmentation patients, dual plane.
The reasoning is straightforward. Most women want a natural upper pole, most don’t have enough tissue up there to guarantee one without help, and dual plane buys that coverage without the full stiffness of a complete submuscular pocket. It also handles mild sagging: a Type III release lets the breast re-drape over the implant and sometimes avoids the need for a separate lift.
The three release types are worth knowing by name, because they aren’t interchangeable. Type I releases the least and suits a patient with no sagging who needs only refinement. Type II divides higher and gives more lower-pole projection, suiting a mildly constricted lower pole. Type III frees the muscle to the level of the areola and gives the tissue maximum ability to re-drape.
I go above the muscle when a patient has genuine tissue to spare, or when heavy chest training is central to her life and she’d rather not deal with animation at all. That’s a legitimate reason and I don’t argue with it.
Two things I do differently
Placement is the decision most articles cover. These two rarely come up, and both affect your result more than the pocket name.
I never lower the inframammary fold. Some surgeons lower it to fit a larger implant, which means dividing the ligaments that support the breast from below. It buys room and raises the risk of bottoming out, where the implant gradually settles too low and needs revision surgery. It’s one of the more common problems I’m asked to repair in patients whose original surgery was done elsewhere.
You won’t be in a compression bra for weeks. Because the fold stays intact, there’s no concern about the implants dropping too far, so there’s no reason to strap everything down around the clock. An ace wrap goes on and comes off the next day. You move to a normal bra once things settle, usually at two to four weeks. This is different from what most practices advise, and it’s a direct consequence of the fold decision.
I’ll add a third thing that isn’t about placement at all. A strict no-touch protocol during surgery, including nipple shields, because bacterial contamination of the implant surface is one of the leading explanations for capsular contracture. Placement affects contracture risk, but in my experience what happens on the sterile field affects it more.
Recovery, honestly
Over the muscle. Soreness for the first two days, described by most patients as pressure rather than pain. Desk work by days three to five. Noticeable settling by week three. Lower-body training from around week three, upper body from week six.
Under the muscle or dual plane. A tighter, sorer first three days as the muscle adapts. Desk work by days five to seven. Stiffness eases through weeks three and four, though the implants still sit high. Chest-loading work waits until six to eight weeks. Final shape at three to six months.
Patients having awake breast augmentation under local anesthesia generally move through the early part of this faster, because there’s no general anesthesia to recover from. Some are back at a desk within two to three days.
Our exercise timeline goes through the return to training in more detail, including the animation question for people who lift seriously.
Risks, by position
Capsular contracture. Scar tissue tightens around the implant and the breast becomes firm. Lower incidence under the muscle across multiple long-term series.
Rippling and visible edges. Almost always a coverage problem. More common above the muscle, and disproportionately in lean patients.
Animation deformity. Only possible under the muscle or dual plane. Severity depends on muscle mass, implant size and how much release was done.
Positional drift. Submuscular implants tend to ride up or move laterally. Subglandular implants are more likely to bottom out or fall to the side when lying down.
Double bubble. A visible ridge where the natural fold crosses the lower edge of the implant. Associated with submuscular placement when fold position and muscle release aren’t planned together, which is part of why I leave the fold alone.
How implant choice interacts with placement
These two get discussed as separate decisions, and I’ve never understood why.
Volume and projection raise the stakes on coverage. A 250cc moderate profile makes gentle demands on the tissue above it. A 450cc high profile pushes hard against the pocket and will find any thin spot. The larger and more projected the implant, the more the muscle layer earns its place.
Fill material matters too. Cohesive silicone gel holds its shape and resists folding, so it’s more forgiving above the muscle. Saline moves freely and wrinkles more readily, so it benefits more from muscular cover. We compare both in silicone vs. saline breast implants.
On shape: I use smooth round implants for cosmetic augmentation. Every teardrop implant has a textured shell, and textured implants have been associated with a rare immune system cancer, which is why most US surgeons stopped using them for cosmetic cases. That reasoning is laid out in round vs teardrop breast implants.
Over vs. under the muscle: side by side
| Factor | Over the muscle | Under the muscle |
|---|---|---|
| First week | Milder; active in 3–5 days | Tighter and sorer; 5–7 days |
| Upper pole | Shows implant shape more directly | Gradual, tapered slope |
| Rippling risk | Higher, especially if lean | Meaningfully reduced |
| Capsular contracture | Historically higher | Lower in published series |
| Animation deformity | Not possible | Possible when flexing |
| Settling | 2–4 weeks to near-final | 3–6 months |
| Mammogram | May need extra views | Implant displaced behind muscle |
| Suits | Good tissue coverage, developed pectorals | Lean frame, limited tissue |
What to ask at your consultation
- Ask for the pinch test and ask what your number means for your options
- Ask why this surgeon is recommending this pocket for your anatomy, not in general
- Ask whether they lower the inframammary fold, and what they do instead
- Ask what infection-control steps they take during implant placement
- Tell them how you train, especially chest work
- Ask when you can drive, work, lift and exercise
- If breastfeeding is in your plans, raise it so incision and placement can be planned around it
Common questions
Is it better to get implants over or under the muscle?
Neither is universally better. Under the muscle produces a more natural upper pole for women with limited breast tissue and carries lower published rates of capsular contracture. Over the muscle offers an easier recovery and no animation deformity, and suits patients with enough tissue to cover the implant themselves. The pinch test at consultation is what decides it.
Do under-the-muscle implants look smaller?
At first, yes. The muscle holds them high and compressed for the first several weeks. As it relaxes and the implant descends through drop and fluff, over roughly three to six months, the full volume becomes visible. Once settled, the difference in perceived size compared with the same implant above the muscle is minimal, though the shape is softer and more tapered.
How can I tell whether my implants are over or under the muscle?
Press your palms together in front of your chest and contract hard. If the implant visibly shifts, flattens or rides up, it is almost certainly under the muscle. If nothing changes, it is likely subglandular. Your operative report confirms it, and any plastic surgeon can tell on examination.
Can I switch placement later?
Yes. A site-change revision moves the implant from one pocket to the other. It is more involved than a straight implant exchange, since a new pocket has to be created and the old one managed, often with capsulectomy, and it comes with its own recovery. It is a common solution for rippling above the muscle or for animation below it.
Does placement affect breastfeeding?
Very little. Both pockets sit behind the gland and duct system. Incision choice matters more, and an inframammary incision is the least disruptive of the options.
Talk it through in Paramus
Placement is not a decision to make from an article. It takes a measurement and an examination, and it should be explained to you in terms of your own anatomy rather than general preference.
Our office is on Winslow Place in Paramus, convenient to all of Bergen County. See our page on breast augmentation in New Jersey, or call (201) 546-1890 to arrange a consultation.
Medically reviewed by Dr. Michael Gartner, DO, FACS — double board-certified plastic surgeon, Fellow of the American College of Surgeons, and named to Newsweek’s America’s Best Plastic Surgeons 2026 for Breast Augmentation. Practicing in Paramus, New Jersey for over 20 years.
