Which Type of Liposuction Leaves the Smallest Scar?

Thank you for your question. It is hard to provided with a valid medical opinion without photos.  I would suggest to be treated by board certificated plastic surgeon with experience in this procedure, to get the best desired results.
Kind Regards,Dr. Emmanuel Mallol Cotes.-

Vaser liposuction, also known as Vaser #lipo, LipoSelection or Liposuction, is an advanced body #contouring procedure that selectively removes unwanted body fat. An alternative to the harsh techniques of traditional liposuction, #Vaser lipo uses state-of-the-art ultrasound technology designed to gently #reshape your body. There are three types of #Vaser Lipo. Each benefit patients differently depending on their needs. Scars should diminish as you heal. The final results of the procedure are typically most noticeable 2-4 months following the #Vaser. But, if they do not, your doctor can recommend ways to improve the appearance of the #scars, or, treat you with in-office services. There are also many products she or he can suggest for scar management. If you have concerns about your healing it is important to call your plastic surgeon to discuss these further asked to be examined. 

I use microcanulas
that are a few millimeters in diameter for tumescent liposuction under mild
sedation which leaves a negligible scar. We are able to hide the incisions in
natural skin creases. All liposuction treatments, whether with a laser (laser-lipo)
or with no laser, have the same small scar from the port of entry site. It is
best to have a consultation with a board certified surgeon to assess your medical
history as this also influences scaring. Best, Dr. Khorasani

Micro canulas no more than few millimeters in diameter is typically used in a pure tumescent liposuction under mild sedation and typically leave minimal scar. Larger canulas are typically used in traditional liposuction done under general anesthesia so that the procedure can be completed quicker but can leave behind larger liposuction scar. For a fair skin person, the scar typically is not very noticeable a year after liposuction. On the other hand, ethnic skin may experience prolonged post-inflammatory pigmentation which can make the liposuction stand out for some time.

There is no way to produce an invisible scar if liposuction is done. The insertion scar can be very very small but when you stretch the skin even a year after, you can see the little fine white line. The diameter of the cannula, the round instrument used to aspirate the fat, is the determining factor in the size of the scar. Some procedures such as ultrasonic liposuction use larger cannula so the scars may be slightly bigger, but for tumescent liposuction or other types of conventional liposuction, including power-assisted liposuction, the size of the cannula is the cause of the lenghth of the scar. Most liposuction scars heal well, if not, they can often be improved.