The BBL has the most frightening safety history of any cosmetic procedure, and also one of the most misquoted. You will see "1 in 3,000" and "1 in 15,000" repeated with no source. I could verify the first as a historical, method-dependent estimate. I could not verify the second, so I have left it out.
How common is it
From the ISAPS Global Survey 2024:
- Plastic surgeons performed more than 17.4 million surgical aesthetic procedures worldwide.
- Brazil led the world in surgical procedures with 2.3 million.
- The US performed more than 6.1 million aesthetic procedures in total.
- 52.6% of surgical procedures worldwide took place in hospitals and 29.9% in office facilities.
I could not extract reliable buttock-specific counts from the ISAPS or Aesthetic Society reports, so I am not quoting them. The 2017 task force below gives the best verified US volume data: core Aesthetic Society surgeons performed 7,382 gluteal fat grafting procedures in 2011 and 18,487 in 2015, and the task force estimated around 23,108 US cases in 2015 once other surgeons were included.
Mortality estimates
The 2017 multi-society task force surveyed 4,843 plastic surgeons; 692 responded (14.3%). Of those, 612 had performed at least one procedure, reporting 198,857 career cases.
| Measure | Reported |
|---|---|
| Fatal pulmonary fat emboli (career) | 32 |
| Non-fatal pulmonary fat emboli (career) | 103 |
| Career mortality estimate | 1 in 6,214 |
| Mortality in the prior 12 months | 1 in 3,448 |
| Fatal or non-fatal embolism, prior 12 months | 1 in 1,030 |
| Confirmed US deaths, 2011 to September 2016 | 25 |
| Accredited-facility mortality estimate (2014-15) | 1 in 2,351 |
The authors state that none of these estimates should be construed as the actual rate. They come from a low-response survey and different denominators. A 2023 paper on budget BBLs and medical tourism describes unsafe, deep-fascial technique as carrying a mortality of "up to 1:3000". Treat that as a historical worst case, not a current rate for all BBLs.
What causes deaths
The task force found that injecting fat into or below the muscle was the key danger. In the survey analysis, deep-muscle injection had an adjusted incidence-rate ratio of 4.03 for fatal embolism and 6.15 for non-fatal embolism. A downward-pointing cannula tip had a ratio of 3.90, and multi-hole cannulas 2.46.
South Florida autopsy findings
A 2023 study of South Florida found:
- 25 BBL-related fat embolism deaths between 2010 and 2022.
- 14 of those happened after the 2018 guidance and the 2019 subcutaneous-only rule, which shows that rules alone did not end the deaths.
- 92% of the deaths followed surgery at high-volume, budget clinics.
- Typical operations in the fatal cases ran approximately 90 minutes.
- In the 11 autopsies examined, every embolism case had intramuscular fat at multiple levels.
What the safety guidance now says
A 2022 joint statement from ASPS, the Plastic Surgery Foundation, the Aesthetic Society and ASERF supports injecting fat only into the subcutaneous space and using real-time ultrasound, and notes Florida rules limiting surgeons to three procedures per day and requiring ultrasound. These are safety measures, not guarantees. A 2024 Polish cohort of 185 women treated with ultrasound-guided fat grafting shows the technique in practice, but it is a single-practice sample and not a population rate.
Budget clinics and surgery abroad
In the 2023 medical-tourism case series, six women aged 20 to 49 presented to one institution in May 2022 with BBL complications. Four had infections and two had intramuscular fat on imaging. Treatment of cosmetic-surgery complications in the US was reported at $15,000 to $40,000. That figure is the cost of treating complications, not the price of a BBL.
For CDC findings on infections after cosmetic surgery in the Dominican Republic, see the mommy makeover death rate statistics. For market-wide numbers on travelling for surgery, see the medical tourism statistics.
What to ask before booking
- Will fat be injected only into the subcutaneous layer, and will ultrasound be used?
- How many BBLs does the surgeon do in a day?
- Is the facility accredited, with a plan for transfer to a hospital?
- Is the surgeon board-certified in plastic surgery?
- Are you booking a fixed price package or the lowest quote? The fatal cluster was in high-volume budget clinics.
Our BBL guide lists clinics, and if you want a shortlist, tell me what you are planning. If you are combining a BBL with other surgery, read what a mommy makeover includes and the notes on operating time and blood clots.
This page is information, not medical advice. Last reviewed October 2026.
