Medically reviewed content from Don R. Revis, Jr., MD, FACS, double board-certified plastic surgeon

If you can see a visible crease or step-off below your nipple after breast augmentation — almost as if your natural breast tissue is sitting on top of the implant rather than around it — you may be dealing with double bubble deformity. It’s one of the more visually noticeable augmentation complications, and also one of the more misunderstood. Here’s what’s actually happening, and what fixing it involves.

What Is Double Bubble Deformity?

Double bubble deformity gets its name from its appearance: a visible groove or crease forms across the lower breast, below the nipple, creating the look of two separate curves — one from the natural breast tissue, and a second, lower one from the implant beneath it. Instead of one smooth contour, the breast appears to have two distinct ‘bubbles’ stacked on top of each other.

What Causes the Double Bubble Effect?

The deformity typically develops when the original inframammary fold — the natural crease where the breast meets the chest wall — lifts or separates from the chest wall, allowing the implant to slip downward and out from underneath the existing breast tissue. Once that separation happens, the breast tissue above and the implant below no longer move as a single, unified shape.

Double bubble is frequently seen alongside bottoming out, since both involve the lower portion of the implant pocket losing its structural support.

Double Bubble vs. Bottoming Out: What’s the Difference?

These two terms are often used interchangeably, but they describe slightly different things — and understanding the distinction matters, because it affects how a surgeon plans the correction.

• Bottoming out describes the implant’s overall position — it has dropped too low relative to the nipple.
• Double bubble describes a specific visual sign — a visible crease or step-off — that results when the original inframammary fold separates from the chest wall while the implant shifts downward.

In practice, the two conditions frequently occur together, since both stem from the same underlying issue: a stretched or compromised lower pocket.

Signs You May Have Double Bubble Deformity

• A visible horizontal line or crease across the lower breast, below the nipple
• The appearance of two separate curves rather than one smooth breast contour
• A fold that becomes more noticeable in certain bras or positions, and may be more visible standing than lying down
• Often accompanied by a heavy or lower-than-expected implant position

How Double Bubble Is Corrected

Because double bubble stems from a structural problem with the implant pocket, it isn’t something that resolves with a different bra or a smaller implant. Correction requires surgically repositioning the pocket itself — commonly performed as part of the Original Internal Bra technique, which is also used to correct bottoming out and synmastia.

The general approach involves releasing and repositioning the compromised fold, then using permanent internal sutures to re-establish a stable lower boundary for the implant pocket — preventing the implant from separating from the natural breast tissue above it again.

What to Expect From Recovery

Recovery timelines are similar to other pocket-revision procedures: most patients see initial swelling resolve within the first couple of weeks, resume non-strenuous activity within days, and return to full exercise within about three weeks. As with other Internal Bra corrections, full healing of the internal support structure takes around 12 weeks, after which results are designed to be long-lasting.

Frequently Asked Questions

Is double bubble deformity dangerous?

No — it’s a cosmetic and structural concern rather than a health risk. That said, it doesn’t improve on its own and typically requires surgical correction to resolve.

Can double bubble happen years after my original surgery?

Yes. While it can be present shortly after the original augmentation, it can also develop gradually over months or years as the inframammary fold shifts.

Will a smaller implant fix double bubble?

No. The problem is the position of the fold and pocket, not the implant size — a smaller implant placed into the same compromised pocket will still show the same crease.

Does double bubble always come with bottoming out?

Not always, but the two frequently occur together since they share a common cause: a lower pocket that has lost its structural support.

If you’re noticing a visible crease or step-off in your breast shape, schedule a consultation to find out whether double bubble deformity is the cause and what correction would involve for your specific anatomy.