Thank you for your question. I have many patients with very little body fat who wish to have a BBL. It depends on the patient and their desires. If you have areas of fat that can be liposuctioned, with enough volume to fat graft, you can notice a subtle change both in the liposuctioned areas as well as the buttocks. Usually this doesn't translate into increasing the buttock volume very much, but changing the overall shape and giving a more curvaceous figure to the thin patient. Also - there is a more expensive option called Renuva, which is an allograft adipose matrix that comes in small volumes. This can be used to treat divots in the buttocks (as well as spot areas in other parts of the body) if you are so thin that using your own fat is not an option for you.The last option I recommend, which is not permanent, is Sculptra injections to the buttock performed by a board certified plastic surgeon. This typically lasts for two years and can be pricier as well, but good for those patients who do not have enough fat to undergo BBL.I do not recommend buttock implants due to the complications and low patient satisfaction with this procedure.