Liposuction: is cosmetic surgery and has little to offer in the way of lasting weight loss. Also, commonly your skin may appear bumpy, wavy, or withered due to uneven fat removal, poor skin elasticity, and unusual healing. These changes may be permanent. Damage beneath the skin from the thin tube (cannula) that's used during liposuction may give the skin a permanent spotted appearance. In addition to all this, it can cause heart and kidney issues. Cool Sculpting: completely destroys the fat cell and because of this the body can never store fat in the cool sculpted area again which often leads to deformities if the patient ever gains weight again.