Dog ears after a tummy tuck are small mounds of bunched-up skin and fat that form at the ends of the incision line, usually near the hips. They happen because of a basic geometry problem: when a surgeon removes a section of skin and closes the wound, the remaining tissue at each end of the cut can bunch up if the incision isn’t long enough to taper smoothly. The more skin removed, the longer the incision needs to be to avoid this puckering effect.
The Geometry Behind Dog Ears
Think of cutting an oval out of a piece of fabric and then trying to pull the edges together. If the oval is wide but short, the fabric at each end has nowhere to go and folds over on itself. That’s essentially what happens with skin during a tummy tuck. Surgeons sometimes call this “coning” because the excess tissue rotates and stacks into a cone-shaped bump.
The technical cause is a mismatch between the length of the closure line and the length of the original incision edges. When the final wound is shorter than the skin on either side of it, the leftover tissue gets pushed outward by rotational forces at the margins. This effect becomes more pronounced when the angle at each end of the incision exceeds about 30 degrees. Curving body surfaces like the hips make the problem worse, because skin fibers naturally spread apart on convex areas rather than lying flat.
Why Some Patients Are More Prone
Several factors increase the likelihood of dog ears. Patients who carry more fat in their flanks or “love handle” area create a sharper transition between the flat, tightened abdomen and the untreated tissue on the sides. The more dramatic that transition, the more likely the skin will bunch at the incision endpoints. A shorter incision also raises the risk. Some patients prefer a shorter scar, but a shorter cut means less room for the surgeon to taper the edges smoothly.
Body shape plays a role too. Someone with a wider torso relative to their hips presents a different tailoring challenge than someone with a narrow frame. Significant skin laxity, loose underlying tissue, and prior abdominal surgeries can all make the tissue less predictable during closure.
How Surgeons Try to Prevent Them
The primary prevention strategy is extending the incision far enough for the skin edges to taper to a smooth, flat endpoint. Surgeons describe this as “ellipsing out” the closure. As a rule, the more skin removed from the abdomen, the longer the incision needs to extend toward the hips. For most patients, the incision extends at least three to four times the width of the tissue removed, ensuring the corners come together without lumping.
Combining liposuction with the tummy tuck is another common approach. Liposuction on the flanks and along the edges of the incision reduces the volume of fat in those transition zones, creating a smoother contour between the treated abdomen and the surrounding areas. This makes the tissue easier to close flat and significantly reduces the chance of dog ears forming.
Some surgeons use specialized incision patterns, such as a fish-tail design at the ends, to distribute tension more evenly and minimize bunching.
Swelling vs. Actual Dog Ears
Dog ears aren’t always obvious right after surgery. Post-operative swelling can mask them, or it can mimic them. In the early weeks of recovery, the ends of your incision may look lumpy simply because of normal inflammation, not because of a true tissue surplus. This is why most surgeons wait three to six months before evaluating whether the bumps are permanent.
The key difference: swelling is soft, diffuse, and gradually shrinks over time. Dog ears are firmer, puckered mounds that hold their shape even as surrounding swelling fades. By six months, the picture is usually clear. If those small mounds at the ends of your scar persist and maintain a consistent shape, they’re likely true dog ears rather than lingering inflammation.
How Dog Ears Are Fixed
Dog ear revision is one of the more straightforward procedures in plastic surgery. For most patients, it can be done in the office under local anesthesia. The surgeon numbs the area around the scar, extends the incision slightly, removes the excess tissue, and recloses the skin. The result is a somewhat longer scar but a flat, smooth contour. Recovery is minimal compared to the original tummy tuck.
If the dog ears are large, or if you strongly prefer not to be awake during the procedure, the revision can be performed in an operating room under sedation. Either way, most surgeons recommend waiting at least six months after the original surgery before scheduling a revision. This waiting period allows all swelling to resolve and gives the tissue time to settle into its final position. In some cases, mild dog ears actually flatten on their own during this period as inflammation subsides and the skin redrapes.
Revision is common enough that many surgeons discuss the possibility upfront during tummy tuck consultations. It doesn’t indicate a surgical error. It reflects the inherent challenge of removing a large section of skin from a three-dimensional, curved surface and closing it into a flat line.