What Causes Liposuction Scars? How To Reduce Liposuction Scars, It’s crucial first to know the precise mechanics of the liposuction technique to understand what causes lipo scarring. A plastic surgeon will essentially make tiny incisions in the places from where extra fat is to be removed. With the aid of a tiny instrument known as a cannula, the surgeon can remove the fat with a vacuum or syringe. Since the incisions are so little, significant scarring is uncommon. But any type of skin injury has the potential to result in scarring. The likelihood of getting a liposuction scar can be decreased by having the surgery performed by a qualified plastic surgeon.