Weight loss after BBL. Will my results go back if I gain weight?

Exercise can be resumed after 6 weeks post op. Fat that is transferred will be lost and gained just like all other fat. 

Thank you for your question. When a BBL is done, fat is transferred as a graft, about 30% of the fat is reabsorbed and the other 70% survives. After liposuction and BBL, fat distribution in your body is different, weight gain will also be different. It's hard to know for sure how weight gain will affect your body 

Dear KellyChicago,
if you gain weight, you will likely see your weight gain in a uniform distribution after a fat transfer to the buttock (Brazilian buttock lift). The weight or fat that you gain after surgery will not necessarily all go to your buttock area. Similar to weight loss, It’s important to realize that weight loss will affect the entire body, but it may affect the buttock in a more pronounced manner.
Daniel Barrett, MD

Certified, American Board of Plastic Surgery
Member, American Society of Plastic Surgery
Member, American Society of Aesthetic Plastic Surgery