There is no "legal" maximum for the amount of fat and fluid that can be removed with liposuction in one setting. There are recommendations from safety/patient advocate committees that have been made to maximize patient safety. If more than 5 L of fat and fluid is aspirated, an overnight hospital stay is recommend to watch for fluid shifts and dehydration and to rehydrate the patient. If a patient needs more than 5 L of fat removed, it may behoove them to either lose weight first to avoid the 5 L limit or to divide the surgery into multiple segments to maximize safety. Many patients balk at paying an extra OR and facility fee, putting money ahead of safety, but it's better to be safe than sorry. There is also no limit for the amount of fat that can be injected into the buttocks. The amount that can be placed into your buttocks will depend on how much your buttocks can accept. This will be based on each patient's individuals buttocks characteristics - laxity or lack thereof of the skin, dimpling, original buttock shape, etc. Too much fat injected at once may end up killing the majority of the fat because it is smothered and can't get any oxygen. You're better of having a smaller appropriate amount injected than the absolute maximum as more of that will live than stuffing in too much. You only get one body and one life. Liposuction and BBL are ELECTIVE procedures, not lifesaving procedures. Therefore, there is absolutely no need to take any extra risks. Beware of plastic surgeons who say "yes" just to get your money. Just because something can be done, doesn't mean it should be done. Best of luck!