Brazilian Butt Lift (BBL)

Introduction

A Brazilian Butt Lift, almost always shortened to BBL, is a cosmetic surgery that reshapes the buttocks using fat taken from other parts of your own body. It combines two procedures in one operation: liposuction, which removes fat from areas such as the abdomen, waist, back or thighs, and fat grafting, which injects that fat into the buttocks to add volume and improve shape.

If you are reading this, you are most likely already thinking seriously about having a BBL. You may have spoken to a surgeon, or you may be at the point of comparing what different surgeons have told you. This guide is written to help you understand the procedure in depth — what it actually involves, who tends to be a good candidate, the specific safety questions that distinguish modern BBL from older techniques, what recovery looks like, and what kind of results are realistic.

BBL has been the subject of significant safety review by plastic surgery societies over the past decade. Understanding why technique matters so much, and what questions to ask your surgeon, is an important part of preparing for this operation.

What Is a Brazilian Butt Lift?

The clinical name for a BBL is gluteal fat grafting or autologous fat transfer to the buttocks. “Autologous” simply means the fat comes from your own body. Despite the name, a BBL is not technically a “lift” in the way a face lift or breast lift is — it does not primarily remove sagging skin. Instead, it changes the shape and projection of the buttocks by adding volume in carefully chosen areas.

The procedure has three core stages, all carried out in a single operation:

1. Liposuction of donor areas. Fat is suctioned out of areas where you have unwanted volume — commonly the abdomen, flanks (the sides of the waist), lower back, and outer or inner thighs.
2. Processing the fat. The harvested fat is filtered, washed or centrifuged so that healthy fat cells are separated from blood, oil and fluid. Only viable fat is used for grafting.
3. Fat injection into the buttocks. The purified fat is injected through small entry points using long, blunt-tipped instruments called cannulas. The fat is layered into specific zones to build projection, fill flat areas, and improve the curve from the waist down to the buttock.

Because the operation removes fat from one area and uses it to reshape another, the change in body silhouette comes from two things at once: a smaller waist or smoother contour where fat was removed, and a fuller, rounder buttock where fat was added. This combination is why many people describe BBL as a body contouring operation as much as a buttock procedure.

BBL versus buttock implants

BBL is distinct from gluteal implants, which use silicone devices placed surgically inside the buttock. Implants can produce more dramatic projection in patients who do not have enough fat to transfer, but they carry a different set of risks — implant displacement, infection around the implant, and the need for eventual replacement. Surgeons typically discuss implants only in specific circumstances, such as very thin patients who lack donor fat. Most patients who choose buttock enhancement today choose fat grafting rather than implants.

Why People Choose a BBL

People come to a BBL consultation for a range of reasons. Some feel their buttocks are flat or lack projection relative to their hips. Others are unhappy with asymmetry between the two sides, or with a square rather than rounded shape. Many are bothered less by the buttocks themselves and more by the relationship between the waist, hips and buttocks — they want a more defined waist and a smoother transition into the lower body.

Common goals patients describe include:

• Fuller or rounder buttock shape
• More projection when seen from the side
• Improved waist-to-hip ratio
• Correcting asymmetry between the two sides
• Smoothing dips or hollows on the upper outer buttock (sometimes called “hip dips”)
• Removing stubborn fat in areas like the abdomen, flanks or back that has not responded to diet and exercise

BBL is a purely cosmetic procedure. It does not treat a medical condition. Major plastic surgery societies emphasise that patients should pursue it for their own goals, with realistic expectations, rather than to meet an external standard.

Who Is a Candidate?

Whether a BBL is appropriate for any individual is a clinical decision your surgeon will make with you. There are, however, well-established characteristics that surgeons commonly look for when deciding whether someone is a suitable candidate.

Generally favourable factors

• Skeletal maturity and adult body. BBL is performed only on adults. Most surgeons require patients to be in their twenties or older.
• Adequate donor fat. Because the procedure uses your own fat, there must be enough fat in the donor areas to harvest a meaningful amount. Very thin patients may not have enough fat to produce a noticeable change.
• Stable weight. Surgeons generally prefer that your weight has been stable for at least several months. Significant weight changes after surgery affect the result.
• Good overall health. Well-controlled blood pressure, no untreated heart or lung disease, no active infections, and a body mass index that does not significantly raise surgical risk.
• Non-smoker, or willing to stop. Nicotine reduces blood supply to tissues and harms fat survival. Most surgeons require stopping all nicotine products for several weeks before and after surgery.
• Realistic expectations. Understanding what fat grafting can and cannot achieve, and accepting that the body has anatomical limits.
• Ability to follow recovery instructions. Particularly the requirement to avoid direct sitting on the buttocks for several weeks.

Factors that may make BBL less suitable

• Very low body fat with no realistic donor sites
• Expectations of very large volume increases that exceed what fat grafting can safely deliver
• Unstable weight, active eating disorder, or recent significant weight loss that has not stabilised
• Uncontrolled medical conditions such as diabetes, clotting disorders or heart disease
• Active smoking that the patient is unwilling or unable to stop
• Pregnancy, or planning pregnancy in the near future
• Inability to keep pressure off the buttocks during recovery — for example, because of a job that requires prolonged sitting without flexibility, or a medical condition that restricts lying prone or on the side
• Psychological factors such as body dysmorphic disorder, which surgeons screen for during consultation

An honest conversation with a qualified plastic surgeon about your goals, your anatomy, your medical history and your lifestyle is the most important step before surgery.

Alternatives to Consider

BBL is one of several options for changing the shape of the buttocks and lower body. Other options include:

Non-surgical approaches

Targeted exercise. Specific strength training — squats, hip thrusts, lunges and progressive resistance work — can build the gluteal muscles and change buttock shape over months to years. It cannot add fat where there is none, but for many people muscle building produces meaningful change without surgery.

Injectable fillers. Some clinics offer hyaluronic-acid based fillers or biostimulator injections (such as poly-L-lactic acid) for non-surgical buttock shaping. These typically produce subtle change, last from months to a few years, and require repeat sessions. They are not equivalent to BBL.

Permanent silicone or other non-approved injections. Major plastic surgery societies strongly warn against injection of liquid silicone, industrial silicone or any non-medical-grade material into the buttocks. These have caused severe complications including chronic infection, tissue death and death. They are not a legitimate alternative.

Surgical alternatives

Gluteal implants. Silicone devices placed surgically, used in patients without enough donor fat or who want a level of projection that fat grafting cannot achieve. Carries its own risks, including implant displacement and infection.

Buttock lift (without fat transfer). A true “lift” that removes excess skin in the upper buttock area. This is more often done as part of a body contouring procedure after major weight loss, and addresses sagging rather than volume.

Liposuction alone. If your main concern is the surrounding contour rather than buttock volume, liposuction of the waist, back and thighs alone may achieve enough change without fat grafting.

Which option fits any individual depends on anatomy, goals and tolerance for the risks of surgery. Discussing all the options — including non-surgical ones — with your surgeon is part of an informed decision.

BBL Safety: What Modern Technique Looks Like

BBL has the unusual status of being one of the most popular cosmetic procedures in the world and, until recently, the one with the highest reported mortality rate of any aesthetic surgery. The reason is specific and important to understand.

The danger associated with BBL is called fat embolism. If fat is injected into or beneath the gluteal muscle, it can enter a large vein in the area and travel to the lungs, where it blocks blood flow. This complication is rare but can be rapidly fatal.

In response, an international multi-society task force on gluteal fat grafting — including the American Society of Plastic Surgeons (ASPS), the Aesthetic Society, and the International Society of Aesthetic Plastic Surgery (ISAPS) — issued formal recommendations on safer technique. The core points include:

• Fat should be injected only into the subcutaneous layer — the fat layer just under the skin — and not into or under the gluteal muscle.
• Cannulas (the injection tools) should be rigid and blunt-tipped, not sharp, and ideally a minimum diameter to reduce the risk of penetrating veins.
• The cannula should be angled upward, away from the deep muscle, throughout the procedure.
• Use of ultrasound guidance during fat injection, where available, helps the surgeon stay in the safe layer.
• The procedure should be performed in an accredited surgical facility with appropriate monitoring.

Surgeons who follow these recommendations have reported markedly lower complication rates. When you consult with a surgeon, asking directly about their technique — subcutaneous-only placement, cannula choice, and whether they use ultrasound guidance — is a reasonable and important conversation.

Preparing for Surgery

Preparation begins weeks before the operation. Your surgeon will give you specific instructions, but the common elements include:

Medical preparation

• Pre-operative blood tests and any imaging your surgeon requests
• Review of all medications and supplements; some, such as aspirin, ibuprofen, certain herbal supplements and hormonal medications, may need to be paused
• Stopping all nicotine products — cigarettes, vapes, nicotine patches — for at least four weeks before and after surgery
• Avoiding alcohol in the days before surgery
• Maintaining a stable weight in the weeks leading up to the operation

Practical preparation

• Arranging time off from work — most patients need at least two to three weeks before returning to a desk-based role with the necessary modifications, and longer for physically demanding work
• Arranging someone to drive you home after surgery and help you for at least the first few days
• Buying the compression garments your surgeon specifies
• Buying a “BBL pillow” or similar cushion that supports your thighs and keeps direct pressure off the buttocks when sitting becomes necessary
• Setting up your home so you can sleep on your stomach or side, eat, and move around without sitting directly on your buttocks
• Stocking easy-to-prepare food, water, and any prescribed medications in advance

The recovery restrictions for BBL are stricter than for many cosmetic surgeries. Planning the practical side of recovery before the operation is one of the strongest predictors of a smooth result.

What Happens During the Surgery

A BBL is performed under general anaesthesia, though some surgeons use deep sedation with local anaesthetic for smaller cases. The full procedure usually takes between three and five hours, depending on how many donor areas are being treated and how much fat is being transferred.

Step by step

2. Anaesthesia and positioning. You are given anaesthesia and positioned for liposuction — usually on your back to start, then turned to access the back, flanks and thighs.

3. Tumescent fluid. A solution containing salt water, local anaesthetic and a medication to reduce bleeding is injected into the donor areas. This makes liposuction smoother and less bloody.

4. Liposuction. The surgeon makes small entry incisions (a few millimetres each) in discreet locations and uses a cannula to remove fat. Common donor areas are the abdomen, flanks, lower back, bra-line back, and thighs.

5. Fat processing. The harvested fat is filtered or centrifuged to separate viable fat cells from blood, fluid and oil. Only the clean, healthy fat is kept for grafting.

6. Repositioning. You are turned into a prone (face-down) position for the grafting stage.

7. Fat grafting. Using small entry points around the buttocks, the surgeon injects the processed fat in a controlled, layered way into the subcutaneous layer only. The cannula is kept angled away from the deep muscle. The surgeon shapes the buttocks during this stage by varying how much fat is placed in different zones — for example, adding more to the upper outer area to smooth hip dips, or to the lower pole for more projection.

8. Closure and garment. The small entry points are closed with stitches or surgical tape, drains are placed if needed, and you are dressed in a compression garment before being moved to recovery.

Most patients go home the same day or after one night of monitoring, depending on the volume of liposuction and the surgeon’s protocol.

Recovery and Healing

Recovery from BBL combines healing from liposuction (which affects the donor areas) with the specific aftercare needed to protect the grafted fat in the buttocks. The grafted fat needs time and the right conditions to establish its own blood supply — pressure, friction or movement disrupts this and reduces how much fat survives.

First week

• Significant swelling and bruising in both donor areas and buttocks
• Soreness, particularly in the liposuctioned areas, which often feels like a deep bruise
• Drainage of pinkish fluid from incision sites for the first few days
• Compression garment worn day and night, removed only briefly for bathing
• No direct sitting on the buttocks. You may stand, walk and lie on your stomach or side. When you must sit — for example, to use the toilet or to eat — a BBL pillow under the back of the thighs keeps pressure off the buttocks themselves.
• Short walks several times a day to reduce the risk of blood clots
• No driving while taking strong pain medication

Weeks 2 to 4

• Bruising fades; swelling continues to come down but is still significant
• Many patients return to desk-based work with modifications, using their BBL pillow at all times
• Light walking is encouraged; vigorous exercise is not
• The compression garment is still worn most of the day
• Direct sitting is still avoided in most surgeons’ protocols

Weeks 4 to 8

• Most surgeons allow gradual return to direct sitting, often with a cushion at first
• Light exercise such as walking and gentle stretching resumes
• Heavier exercise, gym work and impact activities are still typically restricted
• Swelling continues to settle and shape becomes clearer

Months 3 to 6

• Final shape becomes apparent as residual swelling clears and the surviving grafted fat stabilises
• Full return to exercise, including resistance training
• Scars from liposuction entry points continue to fade over the following year

Strict adherence to the sitting restrictions, garment use and activity limits during the first weeks has a direct effect on how much grafted fat survives. This is one of the few cosmetic operations where the patient’s behaviour during recovery materially changes the result.

Risks and Complications

Every surgery carries risk. Honest understanding of the specific risks of BBL is part of informed consent.

Risks common to any surgery

• Reaction to anaesthesia
• Bleeding or haematoma (a collection of blood under the skin)
• Infection at incision sites or in deeper tissue
• Blood clots in the legs (deep vein thrombosis) or lungs (pulmonary embolism)
• Delayed wound healing
• Scarring at incision sites

Risks specific to liposuction

• Contour irregularities — lumps, dents or asymmetry in the donor areas
• Changes in skin sensation, often temporary but occasionally permanent
• Skin laxity if the skin does not retract well after fat removal
• Seroma (a collection of fluid under the skin) that may need to be drained

Risks specific to gluteal fat grafting

• Fat resorption. A proportion of the grafted fat does not survive. Surgeons commonly overcorrect by injecting more than the desired final volume, knowing that some will be reabsorbed. Survival rates vary widely between patients and depend on technique and aftercare.
• Asymmetry between the two sides. Some asymmetry is common and may require minor revision.
• Fat necrosis. Small areas of injected fat may not establish a blood supply and form firm lumps or oil cysts under the skin. These sometimes resolve on their own and sometimes need to be drained.
• Infection in the grafted area. Uncommon but can be serious.
• Fat embolism. The rare but serious complication described in the safety section. The risk is significantly reduced by subcutaneous-only injection technique, blunt cannulas, and avoidance of deep muscle placement.

How risk is reduced

Choosing a surgeon with formal plastic surgery training, specific experience in gluteal fat grafting, and a practice based in an accredited facility is the single largest factor under your control. Major plastic surgery societies recommend that patients ask about surgeon training, the safety techniques used during the procedure, the facility’s accreditation and emergency protocols, and the surgeon’s personal experience with complications and how they are managed.

Results and Realistic Expectations

Final BBL results become clear between three and six months after surgery, sometimes longer. Three things are important to understand.

First, not all the fat survives. The fat that establishes a blood supply in its new location stays permanently. The rest is reabsorbed by the body, usually within the first three months. The proportion that survives varies between patients and is one reason surgeons inject more fat than the final desired volume.

Second, results depend on weight stability. The transferred fat cells behave like the fat cells of their new location — they grow if you gain weight and shrink if you lose weight. Major weight change after surgery changes the result. Pregnancy can also affect results.

Third, anatomy sets limits. The amount of fat that can be safely transferred, the shape of your underlying skeleton and muscles, the quality and elasticity of your skin, and the location of existing fat all influence what is achievable. A well-performed BBL works within these limits to produce a balanced, proportionate result rather than an exaggerated one.

Patients who report the highest satisfaction tend to have approached the operation with clear, realistic goals discussed in detail with their surgeon before surgery.

Combining BBL with Other Procedures

BBL is often combined with other body contouring work because liposuction is already part of the operation. Common combinations include extended liposuction of the back, arms or thighs, and 360-degree liposuction of the trunk for a fuller silhouette change.

Combining BBL with major abdominal surgery such as a tummy tuck (abdominoplasty) is a separate question. Some surgeons perform these together, while others stage them in separate operations because of the combined length, blood loss and recovery demands. Whether combination surgery is appropriate is a clinical decision that depends on the individual’s anatomy, health and the specific surgeon’s practice.

Life After BBL

For most patients, life returns to normal within two to three months. The buttocks feel soft and natural rather than firm; the scars from liposuction continue to fade over the following year; and the surviving fat behaves as part of your body, gaining or losing volume with your weight.

Long-term care of BBL results is straightforward: maintaining a stable weight, continuing regular exercise (which can include glute-strengthening work to enhance the surgical result), and protecting your skin from significant sun exposure on the scar sites while they mature.

If you are unhappy with any aspect of the result — an area of asymmetry, an unwanted dip, or insufficient volume — a revision procedure can sometimes be done after about six months, once final shape has settled. Discussing this possibility with your surgeon at follow-up is part of normal care.

Frequently Asked Questions

How long does a BBL last?

The fat that survives the first few months is, in principle, permanent — those fat cells live in their new location like any other body fat. However, the appearance of the result changes over time with weight changes, pregnancy and natural ageing, just as the rest of your body does.

How long until I can sit normally?

Surgeons’ protocols vary, but most ask patients to avoid direct sitting on the buttocks for at least two to three weeks, with gradual return to sitting (often with a cushion) over the following weeks. Following your own surgeon’s instructions matters more than any general timeline.

Will I have visible scars?

Scars from BBL are from the small entry points used for liposuction and fat injection — usually a few millimetres each. They are placed in discreet locations and fade significantly over the first year, though they do not disappear entirely.

How much fat can be transferred?

The safe volume varies by patient and is judged by the surgeon based on your anatomy and the donor fat available. Injecting very large volumes raises the risk of complications and reduces the proportion of fat that survives. Most surgeons today emphasise proportion and safety over maximum size.

Is BBL safe?

BBL has been the subject of significant safety review, and modern technique — subcutaneous-only fat placement, blunt cannulas, avoidance of deep muscle injection, and use of ultrasound guidance where available — has substantially reduced the most serious risk, fat embolism. Choosing a qualified surgeon working in an accredited facility, and asking directly about their technique, is the most important safety step you can take.

Can I have a BBL if I am very thin?

Possibly not, because there must be enough donor fat to harvest. Very thin patients may be advised to gain a modest amount of weight before surgery, or to consider other options such as implants. This is a discussion to have with a plastic surgeon based on your specific anatomy.

Will I lose results if I gain or lose weight?

Yes. The transferred fat cells respond to weight change like any other body fat. Major weight gain enlarges the buttocks and donor areas; major weight loss reduces them. Stable weight is the best way to preserve the result.

Can I get pregnant after a BBL?

Yes. BBL does not affect fertility or the ability to carry a pregnancy. Pregnancy, like any major weight change, can alter the result — which is why many patients choose to have BBL after they have completed their family.

Can BBL be revised?

Yes. Revision procedures are possible after the final result has settled, usually at six months or later. Revision may involve additional fat grafting, refinement liposuction of the surrounding areas, or both.

Conclusion

A Brazilian Butt Lift is a substantial cosmetic operation that combines liposuction and fat grafting to change both the donor areas and the buttocks in a single procedure. Modern technique, shaped by clear safety guidance from international plastic surgery societies, has made the operation considerably safer than it was a decade ago — but technique varies between surgeons, and the choice of surgeon, facility and approach matters more than for almost any other cosmetic procedure.

Approaching the operation with clear goals, an honest understanding of what fat grafting can and cannot do, willingness to follow strict recovery instructions, and a thorough conversation with a qualified plastic surgeon about safety technique are the foundations of a good experience. The questions in this guide are starting points for that conversation rather than substitutes for it. The right decision — including whether to have surgery at all — is one made between you and a surgeon who has examined you, understood your goals, and explained their approach.