Surgical Scars from FFS, Liposuction, and Just About Any Invasive Surgery - Do They Ever Completely Disappear?

Anytime a knife is placed on the skin, a scar develops and this is permanent. However, many scars fade very nicely but this takes a year or more for most.

There is no way to erase a scar. There are numerous methodologies available to make scars less noticeable  like designing the incisions along naturally occurring skin crease lines, scar taping, laser and scar injections.  and various surgical maneuvers on the scars themselves once they have formed to break them up visually or change their orientation.