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Liposuction Scars: How Big Are They and Where Do They Go?

2026-08-10 · Written by the clinic · Sources listed below

People ask about scars far less often than they think about them, usually because they assume the answer is bad news. It generally is not. The incisions are small, their placement is a decision rather than an accident, and the thing that most affects how they end up is what happens in the months afterwards.

How big are the incisions?

Three to five millimetres. That is the width the cannula needs to pass through, and it is closer to the size of a grain of rice than to a surgical cut.

Most areas need two or three access points so the surgeon can approach the fat from more than one direction. Cross-hatching, meaning working the same region from two angles, is what produces an even surface, and it is worth an extra tiny incision. A plan that uses one access point per area to minimise scars is optimising for the wrong thing.

The number matters less than you would expect. Two well-placed 4mm marks in a crease are less visible at six months than one badly placed mark in the open.

Where do they go?

This is where a careful surgeon earns their fee, and it is a question you can ask before you book.

• Abdomen and waist - inside the navel, along the bikini line, and in the natural crease at the sides.
• Outer and inner thighs - in the gluteal crease and the groin fold, where the skin already folds.
• Arms - at the elbow crease and in the armpit.
• Under the chin and neck - one point under the chin, and behind each earlobe.
• Male chest - at the border of the areola, where the colour change hides the mark, and in the fold under the chest.
• Back and flanks - along the bra line or the waistband, where clothing sits.

The principle is consistent: put the access point where an existing line, fold or colour change is already doing the work of hiding it. Ask any clinic to name your access points during the consultation. A surgeon who has planned your case will answer immediately.

How they heal, month by month

Scars follow a predictable course and the middle of it looks worse than the end.

Weeks 1 to 2. The incisions are usually left open or loosely closed so fluid can drain, then closed with a stitch removed around day seven. Expect a small pink or red mark.

Months 1 to 3. The mark is at its most visible. It may be pink, slightly raised, and firmer than the skin around it. This is normal collagen activity, not a bad outcome.

Months 3 to 6. Colour begins to fade and the surface flattens.

Months 6 to 12. The mark settles to a small pale dot, often close to invisible on the areas listed above. This is the reason follow-up in our practice runs for twelve months rather than stopping at the point the contour looks final.

Skin tone changes the timeline. Deeper skin tones can hold pigment at the site longer, and some people develop temporary darkening that fades over a year. Tell the clinic if you have a history of keloid or thickened scarring, because it changes both the technique and the aftercare advice.

What actually makes a scar turn out badly

Very little of it is about the surgery itself. A 2024 systematic review of liposuction complications in the Aesthetic Surgery Journal lists contour irregularity and prolonged swelling far more often than problematic scarring. A 2021 safety series in Dermatologic Surgery, covering 9,002 consecutive tumescent cases, reflects the same pattern.

What does affect the outcome:

• Sun exposure in the first year. The most common avoidable cause of a mark that stays dark. Cover the area or use sunscreen once healed.
• Tension on the site. Clothing that rubs, or heavy training resumed too early.
• Infection. Uncommon, and worth reporting the day you notice heat, spreading redness or increasing pain rather than the week after.
• Picking at scabs. Obvious, universal, and still the reason for a fair number of marks.
• Your own scarring tendency. Largely genetic, and the reason the consultation asks about it.

Do different techniques leave different scars?

Not meaningfully. A 2024 comparison in the Journal of Plastic, Reconstructive & Aesthetic Surgery examined different suction techniques and did not find the device to be the deciding factor in outcomes. Ultrasound-assisted and conventional suction use cannulas of similar diameter, so the access points are the same size.

Energy-based techniques do add one specific consideration. Because heat is involved, protecting the skin at the entry point matters, and surgeons use a small sleeve at the incision for exactly that reason. It is a technique detail rather than a reason to choose one method over the other.

What about the scars from a previous operation?

Revision cases are different. Existing incisions can often be reused, which avoids adding new marks, and the tissue underneath is scarred in a way that changes how it responds. That assessment needs its own consultation rather than an estimate from a photograph, since what matters is how the previous surgery was done rather than how it looks now.

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