I always close my liposuction incisions, and most if not all board certified plastic surgeons I know do the same. For some reason, it seems as if many non-plastic surgeons that do liposuction tend to leave the incisions open, placing bulky dressings to soak up the fluid. They make exactly the arguments you made in your question, namely that by leaving the incisions open the swelling goes away faster. They probably also would argue that the incisions are just as good. In my experience, leaving the incisions open leads to soppy wet and gross dressings, and an even bigger mess on your bedsheets than when the incisions are closed. There is pain medicine in that tumescent solution, and I think patients benefit from having it stay inside of them. The amount of fluid we give patients is carefully calculated in liposuction, and there is no way to account for the exactness of the fluid resuscitation if you don't know how much is going to leak out. And since your body absorbs that fluid anyhow in just a few days, I don't see how it could reduce swelling beyond those few days. Finally, and it may only matter to me because I am a board certified plastic surgeon, I think the incisions look much better when they are closed nicely with a fine stitch. It's not just that the line is thinner, but many of the incisions I have seen that were left open tend to indent. But no doubt there are good and thoughtful surgeons who leave them open. This is just my opinion. But it is a far less important issue than choosing the best surgeon you can. Be sure your surgeon is certified by the American Board of Plastic Surgery: the only ABMS board recognized to credential plastic surgeons.