I have literally done thousands of liposuctions. Never once have I put a patient in the hospital for an overnight stay.Liposuction, while it is a very aggressive procedure, as long as the surgeon stays under 5 liters of fat removed and as long as the patient is healthy, will not require an overnight hospitalization. At certain universities around the country and under controlled conditions, some plastic surgeons do mega liposuction which requires hospitalization, but this is certainly not the norm.What keeps one from bleeding and therefore bruising significantly after liposuction is remaining housebound for 3 days, and preferably 5 days. The only thing that keeps a liposuction patient from significant bruising is tiny little clots on tiny little capillaries. If you stay housebound for 3 days and do minimal exertion for the next 2, on the 6th day you can run a marathon with no adverse reactions. Of course, that would require you having the ability to run a marathon.