I want to treat overly-aggressive thigh lipo with a fat transfer. Is this just as risky as getting a BBL? (photo)

Fat transfer to the buttocks has a higher risk than fat transfer to other locations because there are large veins near where the fat is often transferred. This can increase the risk of fat getting into and blocking the blood vessels. The blood vessels in the thigh are much deeper than where the fat is injected, and there are smaller amounts injected as well, which decreases risk.

Hello and thank you for your question and photos. Fat transfer to the thighs would not be as risky as a BBL and even a BBL is relatively safe when performed by an experienced, board-certified cosmetic dermatologist. To achieve the results you want with fat transfer, you must have sufficient fat in another area of the body to serve as the donor site. Another option is Sculptra injections into the thigh, which could also enhance that upper leg contour. Your doctor should be able to customize your treatment plan to your needs based on your specific situation and desired results. 

Fat grafting to the thigh is very safe.  However, fat does not have much integrity and if what you have is a depressed scarred area, it is unlikely fat will correct the contour.  The overlying skin has to be able to stretch to allow the fat to expand the area.  Fat is the only option though, and so massage of this area to get it ready for grafting is recommended.