Dear Chrissy McD, Thank you for your clinical post and an important question. State by state and province by province there is some variation what is considered safe outpatient liposuction and what is considered high volume liposuction. In Canada, the consensus by the Canadian Society of Aesthetic Plastic Surgery is that 5 litres of combined aspirate that is aspirate of both fat and non-fat fluid would be 5 litres. Most plastic surgeons in Canada will not remove more than 5 litres combined aspirate and certainly when 5 litres has been reached most plastic surgeons would insist on the patient staying overnight for 24 hours in monitored care. The more fat that is taken from the body the more soft tissue trauma that occurs and there is certain physiologic fluid shifts that occur that can leave your body in a volume depleted shock-like state. Proper monitoring during liposuction with fluid replacement, post-operative compression garments and deep venous thrombosis (blood clot) prophylaxis is critical. At my facility removal of 2 litres of pure fat or less can be done as an outpatient. Any time there is 2 litres or more pure fat or 5 litres combined aspirate patients are kept overnight and monitored for 24 hours with adequate intravenous fluid resuscitation, mobilization and blood thinning treatments. When liposuction is performed judiciously and appropriate interim post-operative care is taken the morbidity and mortality from liposuction is extremely low. I would definitely seek the consultation and advice of a plastic surgeon with significant experience in the art and science of liposuction and you should anticipate excellent results if you have good soft tissue elasticity and tone and reasonable expectations. When you read the sections on liposuction you’ll see that there are new and more modern techniques to treat the fat, which I term energy-assisted liposuction. The use of energy such as an internal laser, radio frequency energy or ultrasound energy can more gently coagulate and liquefy fat, seal blood vessels and tighten skin. The liquefied and coagulated fat still needs to be aspirated, but there is generally less bruising, swelling and pain and it’s certainly better skin contraction with energy-assisted devices. I hope this information is of some assistance and best of luck. To find out more or schedule a consultation, please visit the link below. R. Stephen Mulholland, M.D. Certified Plastic Surgeon Yorkville, Toronto