Safety · June 5, 2026 · 7 min · By Goldie Strandberg
The Brazilian butt lift: why safety has to come first
A popular procedure with a serious safety history. What responsible practice looks like now.
The Brazilian butt lift, or BBL, has been among the fastest-growing cosmetic procedures of the past decade. It has also carried one of the most serious safety records in all of aesthetic surgery, which is precisely why it deserves a careful, safety-first discussion rather than hype.
What the procedure involves. A BBL uses liposuction to harvest fat from areas like the abdomen or flanks, which is then purified and injected to add volume and shape to the buttocks. Because it uses a patient's own tissue rather than an implant, it can produce a natural feel, and the American Society of Plastic Surgeons describes it as a fat-transfer contouring procedure.
Why it has been dangerous. The serious risk specific to the BBL is fat embolism: if fat is injected into or beneath the gluteal muscle, it can enter large veins and travel to the lungs or heart, which can be fatal. This complication gave the BBL the highest mortality rate of any cosmetic procedure for a period, prompting plastic surgery societies to issue formal safety guidance. The core of that guidance is that fat must be injected only into the subcutaneous layer, above the muscle, never deep into it.
What responsible practice looks like now. In response to the deaths, professional bodies and a multi-society task force developed safety recommendations, and many surgeons now use ultrasound guidance during fat injection to confirm the cannula stays in the safe, superficial plane. Asking a prospective surgeon directly how they avoid deep injection, whether they use ultrasound guidance, and how many BBLs they perform is entirely appropriate and revealing, the kind of safety questioning we encourage in questions everyone should ask before cosmetic surgery.
Facility and surgeon matter even more here. Given the stakes, this is not a procedure to choose on price or to pursue at an unaccredited facility or through medical tourism. The importance of an accredited surgical facility and a properly trained, board-certified surgeon, themes that run through all of cosmetic surgery, are at their most acute with the BBL. The cheapest option is precisely the one most likely to cut the corners that get people hurt, a danger we examine in the real risks of cosmetic surgery tourism.
Recovery. Recovery has its own peculiarities: patients are typically advised to avoid sitting directly on the buttocks for a period to protect the transferred fat, using special cushions, and a portion of the injected fat is naturally reabsorbed, so the final volume settles over months. Following these instructions affects both the result and comfort.
The takeaway. The BBL can deliver a natural result using a patient's own fat, but it has a uniquely serious safety history that makes surgeon selection and technique a matter of survival, not just aesthetics. The responsible path is a board-certified surgeon at an accredited facility who injects only into the safe superficial layer, ideally with ultrasound guidance, and who answers your safety questions without hesitation.
Related reading: The real risks of cosmetic surgery tourism and why surgical facility accreditation matters.