After having fat transfer to the buttocks for a BBL, what happens if you sit the 6th day after surgery? Do you kill the fat?

Your newly transplanted fat after a Brazilian Butt Lift needs oxygen from blood flow. When you sit on the butt, you're compressing your blood vessels which decreases blood flow and subsequently the oxygen reaching the fat. Low oxygen equals fat death. Additionally putting pressure on your buttocks will flatten the newly malleable fat. I advise my patients to put no pressure on the buttocks for a minimum of 6 weeks after BBL. I provide a special sitting roll (NOT a donut roll as this type of roll pushes on the butt) that keeps the butt elevated while sitting. No one wants a bigger, but flattened buttocks! 

Hello dear, thanks for your question and provided information as well.... After a brazilian butt lift, the better is to use a boopy pillow for at least 8 weeks from the procedure to protect the buttock shape, because the fat is moldable and also can get absorbed by our own body in almost a 40%, so is not good to sit without the pillow..