In this guide17 sections
- Key Points
- What Are the Different Types of BBL?
- Types of BBL Compared: Donor Sites, Fat Volume and Time Off
- Full BBL: What Is a Standard Brazilian Butt Lift?
- 360 Lipo and BBL: Why Is It the Most Common Combination?
- Mini BBL vs BBL: What Is the Difference?
- Skinny BBL: Can You Get a BBL If You’re Slim?
- Male BBL: How Is a BBL for Men Different?
- Can a BBL Be Part of a Mummy Makeover?
- Liquid BBL: What Is a Non-Surgical BBL?
- BBL Surgical Methods: Ultrasound-Guided, “Safe BBL”, VASER and EVL
- What to Do Instead of a BBL: Butt Implants, Hybrid BBL and Buttock Lift
- Which Type of BBL Is Best for You?
- Is a BBL Safe? Risks Across Every Type
- Frequently Asked Questions
- Brazilian Butt Lift in London
- References
Key Points
- There are seven main types of BBL. Full BBL, 360 lipo with BBL, mini BBL, skinny BBL, male BBL, a BBL staged within a mummy makeover plan, and the non-surgical liquid BBL.
- The types differ mainly in donor fat and volume. A full BBL moves around 1,600 to 2,000 ml of fat; a mini BBL moves 800 to 1,000 ml from two areas.
- Your build often decides the type. A BMI of about 23 to 28 usually gives enough fat for a full BBL; below 23, a skinny BBL gathers fat from four or five areas.
- The safety rules are the same for every surgical BBL. Fat goes only into the fat layer above the gluteal muscle, under real-time ultrasound.
- Shelf, slope, heart and round are shapes, not types. Any shape is planned within the type of BBL that suits your body.
- A liquid BBL uses filler, not fat. It gives a modest change lasting around 12 to 18 months, with no liposuction and no downtime.
The main types of BBL (Brazilian butt lift) are the full BBL, 360 lipo with BBL, the mini BBL, the skinny BBL, the male BBL, a BBL staged as part of a mummy makeover plan, and the non-surgical liquid BBL. Every surgical type is the same operation: fat is removed by liposuction, purified and injected into the buttocks. What changes is where the fat comes from, how much is moved, how long surgery takes and who it suits. A liquid BBL uses hyaluronic acid filler instead of fat.
This guide compares every type of Brazilian butt lift offered at Centre for Surgery side by side, and explains the technique terms people search for: ultrasound-guided BBL, “safe BBL”, VASER and EVL. If you are deciding on the look rather than the operation, our guide to BBL shapes covers shelf, slope, heart and round results.
What Are the Different Types of BBL?
BBL stands for Brazilian butt lift, a fat transfer operation named after the Brazilian surgeons who popularised it. Despite the name, it does not lift loose skin. It adds volume and shape to the buttocks and hips with your own fat, while liposuction slims the areas the fat comes from. The different types are variations on that one operation, each matched to a different body or goal.
Online, “type” is also used for shapes, such as a shelf BBL, slope BBL or heart-shaped BBL. These are not separate operations. They describe where your surgeon places the fat and how the curve looks in profile.
Types of BBL Compared: Donor Sites, Fat Volume and Time Off
Volumes are total fat transferred across both buttocks; your own plan is confirmed at consultation.
| Type of BBL | Donor sites | Fat volume | Operating time | Time off work | Who it suits |
|---|---|---|---|---|---|
| Full BBL | Abdomen, flanks, back, sometimes thighs | 1,600 to 2,000 ml | 3 to 4 hours | 1 to 2 weeks | BMI about 23 to 28, wanting a clear increase in size |
| 360 lipo with BBL | Abdomen, waist, flanks, mid and lower back | 1,600 to 2,000 ml | 3 to 4 hours (longer end) | 1 to 2 weeks | Fat all round the midsection; wants a narrower waist |
| Mini BBL | Two areas, usually lower flanks and upper thighs | 800 to 1,000 ml | About 2 hours | About 1 week | Subtle change, hip dips or mild asymmetry |
| Skinny BBL | Four or five areas, including inner thighs and sometimes knees | Modest, set by what can be harvested | 2 to 4 hours | 1 to 2 weeks | BMI below 23 with small pockets of fat |
| Male BBL | Abdomen, flanks, back, sometimes banana roll | Tailored, upper and central buttock only | 2 to 4 hours | About 1 week (2 for physical jobs) | Men wanting projection without wider hips |
| BBL in a mummy makeover plan | As for a full BBL | As for a full BBL | BBL stage 3 to 4 hours; tummy tuck separate | Each stage recovers separately, 3 to 6 months apart | After pregnancy, with loose tummy skin and a flat bottom |
| Liquid BBL | None (filler) | Modest | 45 to 60 minutes | None | Too slim for fat transfer, or wanting a temporary change |
Every surgical type shares the same core recovery: no sitting directly on your buttocks for two weeks, a compression garment for six weeks and no driving for four weeks. Our BBL recovery guide sets out each week.
Full BBL: What Is a Standard Brazilian Butt Lift?
A full BBL is what most people mean by “BBL”. Fat is removed from several areas, typically the abdomen, flanks and back, processed, and around 1,600 to 2,000 ml is transferred to the buttocks and, where needed, the hips. It is a day case under TIVA (total intravenous anaesthesia) lasting three to four hours, and you go home the same day after one to three hours of monitoring.
Fat is injected only into the subcutaneous layer between the skin and the gluteal muscle, never into or beneath the muscle. In a prospective study of 50 women, subcutaneous-only grafting held its volume as well as earlier reports of intramuscular injection[1].
Around 50 to 70% of the transferred fat survives, and the rest is planned for by slight over-filling. Most of the result shows by three months, the final shape settles by three to six months, and the surviving fat is permanent, changing with your weight like fat anywhere else. Our article on how much fat is transferred in a BBL explains how volumes are planned.
A full BBL suits people with a BMI of about 23 to 28, a weight that has been stable for at least three months and enough spare fat for a clear change in size. So-called plus-size BBL at a BMI of 30 or above carries higher anaesthetic and wound-healing risks, so losing weight first is usually advised.
360 Lipo and BBL: Why Is It the Most Common Combination?
360 liposuction treats the abdomen, waist, flanks and back as one circumferential zone. Combined with a BBL, the fat that slims the midsection fills the buttocks, so the waist narrows as the hips and buttocks fill out. That contrast creates the hourglass silhouette, and 360 lipo with BBL is the most common combination at Centre for Surgery.
Surgery sits at the longer end of the three to four hour range. No more than five litres of fat is removed in one session, and larger totals are staged. Our article on combining 360 lipo and BBL covers the shaping in more depth.
Mini BBL vs BBL: What Is the Difference?
A mini BBL, also called a baby BBL or small BBL, is the same operation on a smaller scale. Liposuction is limited to two areas, usually the lower flanks and upper thighs, and 800 to 1,000 ml is transferred in total, around 400 to 500 ml a side. In practice that means:
- Shorter surgery: about two hours rather than three to four.
- Quicker return to work: around one week off.
- Earlier exercise: strenuous exercise from about four weeks rather than six.
- The same sitting rule: no sitting directly on the buttocks for two weeks.
A mini BBL suits subtle enhancement, hip dips or a mild asymmetry. The safety rules are identical to a full BBL; the saving is in operating time and recovery.
Skinny BBL: Can You Get a BBL If You’re Slim?
Yes. A skinny BBL is planned for people with a BMI below 23 who still have small pockets of fat. Your surgeon harvests from four or five areas, typically the lower abdomen, flanks, lower back, inner thighs and sometimes the knees. The volume is modest and proportionate, and the aim is shape, projection and a better waist-to-hip ratio rather than size. Filling hip dips often makes the biggest visible difference.
Slim patients also have less room to inject into. An ultrasound study of 150 adults found that gluteal subcutaneous fat thickness rises by around 4 mm for every point of BMI in women and 3 mm in men, so a lower BMI means a smaller safe space for the cannula[2]. Real-time ultrasound, used on every BBL at Centre for Surgery, is especially valuable here.
Surgery takes two to four hours, and most people are back at desk work in one to two weeks. A skinny BBL usually costs more than a standard BBL, as more areas are treated to gather less fat. Our comparison of skinny BBL vs BBL covers the trade-offs.
Male BBL: How Is a BBL for Men Different?
A male BBL uses the same technique with a different plan. A female BBL often adds volume to the hips for a rounded curve. A male BBL places fat only in the upper and central buttock for lift and projection, and leaves the hips and outer thighs alone, keeping a straight line from hip to thigh.
Fat usually comes from the abdomen, flanks and back, sometimes the banana roll. Male fat is firmer and harder to harvest, and more donor areas are often needed, so a male BBL is priced above a standard BBL. Surgery takes two to four hours, and most men are back at a desk after a week and in physical jobs after two. Gluteal fat thickness in men rises with BMI as it does in women[2], so a lean man has a thin layer to work in. A male BBL can be combined with HD liposuction and abdominal etching.
Can a BBL Be Part of a Mummy Makeover?
Yes, but never in the same operation as a tummy tuck. A mummy makeover usually combines a tummy tuck with breast surgery, and many mothers also want back the shape of their buttocks and hips.
Centre for Surgery never combines a tummy tuck and a BBL in one operation; the two are staged three to six months apart. The reason is positioning: after a tummy tuck you rest on your back with your hips bent while the repair heals, whereas a BBL needs pressure kept off the buttocks for two weeks. Doing both at once would compromise one result to protect the other.
Your surgeon plans the order and interval at consultation. Our article on whether a mummy makeover includes a BBL covers the planning. If there is little loose skin on your tummy, 360 lipo with BBL may reshape the midsection without a tummy tuck at all.
Liquid BBL: What Is a Non-Surgical BBL?
A liquid BBL, also called a non-surgical BBL or bum filler, uses injectable filler instead of fat. At Centre for Surgery it is performed only with HYAcorp hyaluronic acid body filler, only by surgeons, in a sterile theatre under ultrasound guidance and local anaesthetic. Centre for Surgery does not use poly-L-lactic acid or permanent fillers in the buttocks.
Each session takes 45 to 60 minutes, and most people need one to three. Avoid direct pressure on the buttocks and strenuous exercise for 24 to 48 hours, and expect swelling or bruising for two to five days. The result lasts around 12 to 18 months and can be dissolved with hyaluronidase if needed.
In a multicentre study of HYAcorp MLF2, patients received an average of 85 ml, and 94% rated the improvement good or very good, with mostly mild swelling and pain that settled within a week[3]. A systematic review of 168 patients estimated that hyaluronic acid lasted around 16 months in the buttocks, but also recorded rare serious complications, so technique and setting matter[4].
A liquid BBL cannot match the size or permanence of a surgical BBL. It suits people too slim for fat transfer, or a top-up after an earlier BBL. On 21 October 2026 the Department of Health and Social Care proposed that fillers injected anywhere other than the face, including liquid BBLs, be legally defined as cosmetic surgery, so only doctors could perform them[5]. Our guide to the liquid BBL in the UK covers safety in more depth.
BBL Surgical Methods: Ultrasound-Guided, “Safe BBL”, VASER and EVL
These terms describe how a BBL is done, and at Centre for Surgery they apply to every surgical type.
What Is an Ultrasound-Guided BBL?
An ultrasound probe on the skin shows the surgeon the cannula tip and the tissue layers in real time, so fat can be seen going into the subcutaneous layer above the muscle. In a 2018 study of real-time ultrasound-assisted gluteal fat grafting in Plastic and Reconstructive Surgery ↗, ultrasound reliably identified the injection plane, and every injection was confirmed to be subcutaneous[6]. Our guide to ultrasound-guided BBL explains more.
What Does “Safe BBL” Mean?
“Safe BBL” is not a separate operation. It describes a BBL done to the safety principles that followed deaths from pulmonary fat embolism, where fat enters the large veins beneath the gluteal muscle and travels to the lungs. An international task force found that surgeons who injected into deep muscle had significantly higher rates of fatal and non-fatal fat embolism[7], and a 2019 survey of 853 Brazilian plastic surgeons in Plastic and Reconstructive Surgery ↗ estimated the risk of death was 16 times greater when fat went into the muscle[8]. The principles are fat in the subcutaneous layer only, a blunt cannula of adequate size kept parallel to the muscle, and a surgeon who knows where the cannula tip is at all times.
VASER vs Power-Assisted Liposuction for BBL: Which Is Better?
Fat can be harvested with power-assisted liposuction (PAL), which uses a gently vibrating cannula, or VASER liposuction, which loosens fat with ultrasound energy first. Both are equally available at Centre for Surgery, and your surgeon recommends one to suit your donor areas. VASER helps where fat is dense or fibrous, such as the back or in men, and is used alongside HD liposuction; PAL is efficient across large areas. Both give fat suitable for grafting, and there is no good evidence that either produces a better BBL.
What Is EVL (Expansion Vibration Lipofilling)?
EVL is the method used to place the fat. A vibrating cannula opens small tunnels in the subcutaneous layer and fills them in the same movement, spreading fat evenly rather than in pools. In a review of 2,419 consecutive gluteal cases, the average volume was 1,003 cc, average operating time was 1 hour 40 minutes, and there were no cases of fat embolism or death[9]. At Centre for Surgery, EVL with a blunt cannula is combined with real-time ultrasound on every BBL.
What to Do Instead of a BBL: Butt Implants, Hybrid BBL and Buttock Lift
- Buttock implants: solid silicone implants of 200 to 600cc, placed within the gluteal muscle through one incision in the buttock crease, for people with too little fat even for a skinny BBL. Our comparison of BBL vs butt implants sets out the differences.
- Hybrid BBL: implants for core projection combined with fat transfer to soften the edges and shape the hips.
- Buttock lift: removes loose, sagging skin and leaves a scar in the swimwear line. It lifts rather than adds volume, but can be combined with fat transfer.
If the main concern is loose skin rather than flatness, a BBL alone can make sagging look heavier, and a buttock lift is usually the better choice. Our article on what happens if you don’t have enough fat for a BBL covers each route.
Which Type of BBL Is Best for You?
There is no single best BBL, only the one that fits your body and goals. Three questions narrow it down:
- How much spare fat do you have? A BMI of about 23 to 28 suits a full BBL or 360 lipo with BBL; below 23, a skinny BBL; very little fat, implants or a liquid BBL.
- How much change do you want? Subtle shaping suits a mini BBL; a clear increase suits a full BBL; a temporary trial suits a liquid BBL.
- What else is changing? Loose tummy skin after pregnancy points to a staged mummy makeover plan; loose buttock skin points to a buttock lift.
The most natural-looking BBL keeps volume in proportion to your frame and blends the fat smoothly into the hips and lower back.
Real Centre for Surgery patient, photographed at least six months after BBL surgery. See more results in our BBL before and after photos.
Cost varies by type, mainly with the number of liposuction areas and the length of surgery. Our BBL cost guide compares current prices.
Is a BBL Safe? Risks Across Every Type
All surgical types of BBL carry the same kinds of risk: swelling, seroma, infection, uneven results, fat necrosis (firm lumps where fat has not survived), blood clots and, rarely, fat embolism. A smaller BBL shortens recovery but does not change the risk of placing fat near the gluteal vessels.
Safety has improved since the guidance changed. In a 2020 follow-up survey in the Aesthetic Surgery Journal ↗, the rate of pulmonary fat embolism fell from 1 in 1,030 to 1 in 2,492, trends suggested the death rate fell from around 1 in 3,448 to 1 in 14,952, and surgeons injecting into deep muscle fell from 13.1% to 0.8%[10].
Where you have your BBL matters as much as the type. Abroad, it is hard to check where fat is placed, flying soon after surgery raises the risk of clots and clashes with the sitting rule, and complications are often treated by doctors who did not operate. Our articles on BBL risks and BBL in Turkey cover this. After any BBL, call 999 for breathlessness, chest pain or coughing blood, and call us, or NHS 111 out of hours, for calf pain or swelling, fever, or a red, hot incision.
Frequently Asked Questions
What does BBL stand for?
BBL stands for Brazilian butt lift, sometimes called a Brazilian bum lift in the UK. It moves your own fat into the buttocks. Despite the name, it adds volume and shape rather than lifting loose skin, which is the job of a buttock lift.
What is the most natural BBL?
The most natural-looking BBL keeps the added volume in proportion to your frame, contours the waist without over-thinning it and blends the fat into the hips and lower back. For many people that means a mini BBL or a moderate full BBL rather than maximum volume.
What is the difference between a mini BBL and a full BBL?
A mini BBL takes fat from two areas and transfers around 800 to 1,000 ml in about two hours, with around a week off work. A full BBL treats several areas, often with 360 liposuction, transfers around 1,600 to 2,000 ml and takes three to four hours. The safety rules and two-week sitting rule are the same.
What’s the difference between a BBL and lipo?
Liposuction removes fat to slim an area, and the fat is discarded. A BBL starts with liposuction but keeps the fat, purifies it and injects it into the buttocks and hips. A BBL therefore slims the donor areas and adds volume, while liposuction alone only slims.
What’s the difference between a BBL and implants?
A BBL uses your own fat, slims the donor areas and feels soft and natural, but some fat is reabsorbed. Buttock implants are solid silicone placed within the gluteal muscle, giving predictable volume when there is too little fat, but with implant-specific risks and a longer recovery. The two can be combined.
What to do instead of a BBL?
The main alternatives are buttock implants, a hybrid of implants and fat transfer, a liquid BBL with hyaluronic acid filler, or a buttock lift where loose skin is the problem. Glute exercise builds muscle and improves shape, but it cannot add fat volume or narrow the waist the way surgery can.
Can I sit to poop after BBL?
Yes, using the toilet is fine from the start. Keep visits brief and lean forward so your weight rests on your thighs rather than your buttocks, and do not use a BBL cushion on the toilet. At other times, avoid sitting directly on your buttocks for two weeks.
What happens 10 years after a BBL?
The fat that survives the first months is permanent, so a well-placed BBL can still look good 10 years on. Changes come mainly from weight, pregnancy and ageing: the fat grows or shrinks with your weight, and skin loosens over time. Our article on BBL after 10 years explains more.
Brazilian Butt Lift in London
Every type of BBL at Centre for Surgery is performed by GMC-registered surgeons at our CQC-regulated Baker Street hospital, rated Good overall by the CQC. Every surgical BBL is a day case under TIVA, with fat placed only above the gluteal muscle under real-time ultrasound, and the consultant who assesses you performs your surgery. Aftercare includes your surgeon’s direct number for the first 24 hours, a nursing team in contact over the first two weeks and a surgeon review at six weeks. We recommend a two-week cooling-off period before you go ahead. Your initial consultation is £100, redeemable against the cost of surgery if you go ahead. Finance isn’t available for BBL at Centre for Surgery, so the procedure is self-funded.
Phone: 020 7993 4849 | Address: 95–97 Baker Street, Marylebone, London W1U 6RN
Contact us to schedule a consultation
References
- Cansancao AL, Condé-Green A, David JA, Vidigal RA. Subcutaneous-only gluteal fat grafting: a prospective study of the long-term results with ultrasound analysis. Plastic and Reconstructive Surgery 2019;143(2):447–451. doi:10.1097/PRS.0000000000005203 ↗
- Frank K, Casabona G, Gotkin RH, et al. Influence of age, sex, and body mass index on the thickness of the gluteal subcutaneous fat: implications for safe buttock augmentation procedures. Plastic and Reconstructive Surgery 2019;144(1):83–92. doi:10.1097/PRS.0000000000005707 ↗
- Crabai P, Campos-Martínez L, Marchetti F, et al. Evaluating the safety and satisfaction of HYAcorp MLF2 for noninvasive buttock augmentation: a multicenter study. Plastic and Reconstructive Surgery Global Open 2025;13(1):e6415. doi:10.1097/GOX.0000000000006415 ↗
- Mortada H, Alkadi D, Saqr H, et al. Effectiveness and role of using hyaluronic acid injections for gluteal augmentation: a comprehensive systematic review of techniques and outcomes. Aesthetic Plastic Surgery 2023;47(6):2719–2733. doi:10.1007/s00266-023-03458-0 ↗
- GOV.UK. Cosmetic cowboys crackdown continues with new restrictions. Department of Health and Social Care, 21 October 2026. gov.uk ↗
- Cansancao AL, Condé-Green A, Vidigal RA, et al. Real-time ultrasound-assisted gluteal fat grafting. Plastic and Reconstructive Surgery 2018;142(2):372–376. doi:10.1097/PRS.0000000000004602 ↗
- Mofid MM, Teitelbaum S, Suissa D, et al. Report on mortality from gluteal fat grafting: recommendations from the ASERF task force. Aesthetic Surgery Journal 2017;37(7):796–806. doi:10.1093/asj/sjx004 ↗
- Cansancao AL, Condé-Green A, Gouvea Rosique R, et al. “Brazilian butt lift” performed by board-certified Brazilian plastic surgeons: reports of an expert opinion survey. Plastic and Reconstructive Surgery 2019;144(3):601–609. doi:10.1097/PRS.0000000000006020 ↗
- Del Vecchio D, Wall S. Expansion vibration lipofilling: a new technique in large-volume fat transplantation. Plastic and Reconstructive Surgery 2018;141(5):639e–649e. doi:10.1097/PRS.0000000000004338 ↗
- Rios L, Gupta V. Improvement in Brazilian butt lift (BBL) safety with the current recommendations from ASERF, ASAPS, and ISAPS. Aesthetic Surgery Journal 2020;40(8):864–870. doi:10.1093/asj/sjaa098 ↗
Related Articles
- BBL Shapes: The 4 Butt Types, BBL Styles and How to Choose Yours
- Skinny BBL vs BBL: Which Suits a Slim Frame?
- Safe BBL: What Is an Ultrasound-Guided BBL and Is It Safer?
- Benefits of Combining 360 Lipo and BBL
