The various complications associated with a liposuction procedure are:
Accumulation of fluid under the skin
Skin contour irregularities
Numbness
Infection
Puncture of an internal organ
Kidney, heart, and lung disorders
Fat embolism (a part of the loosened fat could break away and become trapped in a blood vessel, and then travel to the brain or gather in the lungs)
Lidocaine (anesthetic) toxicity causing heart and central nervous system problems (problems in the brain and spinal cord)