Whenever a wound is created in the body, wound healing will create scar tissue. With liposuction, you will see a few short scars at the insertion points for the suction instrument. However, scar tissue will form inside within the fatty layer that was suctioned. Interestingly, scar tissue usually contracts over time, and this process within the fat might actually help tighten the overlying skin a little. Although this internal scarring might increase the resistance felt when the suction instrument is moved through the fat, it really shouldn't preclude successfully performing a secondary or revision liposuction. So if you didn't see enough reduction in fullness with your initial surgery, then discuss with your surgeon whether a second procedure could reasonably be expected to achieve further improvement.