What can be done about fat graft "hip dips" when body fat is low?

This is difficult to answer without pictures. Keep in mind, fat transfer technique is important for successful fat transfer. I recommend water-assisted fat harvesting which gives pure fat to transfer and combine with platelet rich plasma (PRP) to get the most viable and sustainable fat cells. I combine with Sculptra to improve final results. I recommend getting a formal evaluation with an expert. Best, Dr. Emer

If you have enough fat to harvest then hip dips should be fat grafted But with little body fat in a lean/small frame, fat grafting would likely not worker be sustained. In these cases, hip implants offer the only assured hip augmentation method.

Hi. Only by photos or personal consultation  a  PS expert eye will be in the position to tell you if there are enough fat deposits to harvest and transfer to fill your hip dips. So is impossible to answer your question without photos.Member of the American Society of Plastic Surgeons (ASPS)

Member of the International Society of Aesthetic Plastic Surgery (ISAPS)
Certified Plastic Surgeon