In this guide17 sections
- Key Points
- Can You Reverse a BBL?
- What Is a BBL Reversal?
- How Do You Reverse a BBL With Liposuction?
- Can a BBL Be Removed Completely?
- Can a BBL Be Revised to Fix Asymmetry or Shape?
- Will My Skin Sag After a BBL Reversal?
- Can Losing Weight Reverse a BBL?
- BBL Regret: Why Do People Want Their BBL Reversed?
- When Can You Reverse a BBL?
- Can a Liquid BBL Be Reversed?
- Can Illegal Butt Fillers Be Removed?
- What Is Recovery Like After a BBL Reduction?
- How Much Does a BBL Reversal Cost?
- Frequently Asked Questions
- BBL Reversal in London
- References
Key Points
- A BBL cannot be fully reversed. Transferred fat that survives grows its own blood supply and becomes part of your buttocks, so your old shape cannot simply be restored.
- A BBL can be reduced or revised. Liposuction is the main way to reduce a BBL, and fat can be moved or added to correct asymmetry, dents or an unwanted shape.
- Loose skin is the main limit. After a large reduction, or where skin has lost elasticity, a buttock lift may be needed to remove excess skin.
- Weight loss shrinks a BBL but does not remove it. Grafted fat behaves like your own fat, so losing weight, including on GLP-1 medication, makes it smaller, and regaining weight brings it back.
- Wait for the result to settle. Decide on a BBL reversal at around 6 months, once swelling and early fat loss have finished changing the shape.
- A liquid BBL is different. Hyaluronic acid filler can be dissolved with hyaluronidase; surgical fat cannot, and illegal permanent fillers are the hardest of all to remove.
No, a BBL cannot be fully reversed. Fat that survives a Brazilian butt lift develops its own blood supply and becomes a permanent part of your buttocks, so it cannot be removed in a way that restores exactly how you looked before. What is possible is a BBL reduction or revision: liposuction to reduce volume, fat grafting to correct dents or asymmetry, and, where loose skin is a problem, a buttock lift.
This guide explains what BBL reversal surgery involves, what is realistic, how loose skin is managed, whether weight loss or GLP-1 medication can reverse a BBL, when to act, and why a liquid BBL is reversible when surgical fat is not. If you mainly want to improve a result rather than reduce it, our guide to revision BBL covers that in more detail.
Can You Reverse a BBL?
Not completely. A BBL takes fat from areas such as the abdomen, flanks and back with liposuction, then injects it as small parcels into the fatty layer of the buttocks. Over the following weeks, the fat that survives connects to new blood vessels and becomes living tissue. From then on it is simply part of your buttock fat.
That is why “reverse BBL” is a misleading term. A surgeon cannot pick out the grafted fat cells and leave your original fat behind. Liposuction removes fat from the layer it works in, and it cannot tell grafted fat from fat that was always there.
Research shows how lasting this fat is. In a 2019 prospective ultrasound study in Plastic and Reconstructive Surgery ↗, 50 women who had fat injected only into the layer under the skin were measured before surgery, straight after and at 12 months. Buttock fat thickness rose by an average of 56.5% and fell by only 18.2% over the following year, so most of the gain was still present a year later[1].
There is one more limit. Reduction is only realistic for fat in the subcutaneous layer, between the skin and the gluteal muscle. Fat injected into or beneath the muscle cannot be safely removed with liposuction. The 2017 ASERF task force report in the Aesthetic Surgery Journal ↗, based on nearly 199,000 gluteal fat grafting procedures, found that deep intramuscular injection was linked to a significantly higher rate of fatal and non-fatal fat embolism, as large veins run through and under the gluteal muscle[2]. Working a cannula in that plane carries similar dangers, so a surgeon assessing you will want to know, or check with ultrasound, where your fat was placed.
What Is a BBL Reversal?
BBL reversal surgery, also called BBL reduction, BBL removal or reverse BBL surgery, is an operation to make a previous BBL smaller, more proportionate or better shaped. Despite the name, the aim is rarely to remove all the volume. Most people asking about a BBL reversal still want curves, just less dramatic ones.
The procedure is becoming more common. In a 2025 retrospective review of 123 BBL revision and buttock reduction patients in the Aesthetic Surgery Journal Open Forum ↗, the authors described rising demand since the pandemic[3]. Nine in ten patients had additional procedures at the same time, the complication rate was 1%, and the most common reasons for remaining unhappy were residual fullness (10%), loose skin (6%) and persistent asymmetry (4%). A reduction is generally safe in experienced hands, but it does not always resolve every concern.
A BBL reversal can involve:
- Liposuction of the buttocks, hips or upper thighs to reduce volume.
- Fat redistribution, moving fat from areas that are too full into flat or dented areas.
- Skin removal with a buttock lift if reduction would leave sagging skin.
- Treatment of complications, such as hard lumps from fat necrosis or illegal filler.
How Do You Reverse a BBL With Liposuction?
Liposuction is the main way to reduce a BBL. Through incisions of a few millimetres, placed in natural creases, your surgeon removes fat from the subcutaneous layer of the buttocks and often the hips and outer thighs. Power-assisted or VASER liposuction both allow controlled, even removal, and at Centre for Surgery body procedures are carried out under TIVA (total intravenous anaesthesia), usually as day cases.
The goal is sculpting rather than emptying. Your surgeon will plan where volume should come from, for example reducing the lower outer buttock and hips while preserving some upper projection, so the result still looks natural.
What Is Realistic With BBL Reduction Liposuction?
- You will not get your pre-BBL bottom back. Your skin has stretched, scar tissue has formed and your body has changed.
- Reduction is a matter of degree. A modest reduction in elastic skin gives the smoothest result; removing a large volume raises the chance of loose skin, dimpling and irregularities.
- Scar tissue makes surgery harder. Previous liposuction and grafting leave fibrous tissue, so results can be less predictable than first-time liposuction.
- More than one stage may be needed. Some surgeons reduce conservatively, let the tissues settle, then fine-tune.
- Donor areas stay as they are. Areas fat was taken from in your BBL will not refill.
Can a BBL Be Removed Completely?
No. A BBL can be made smaller, sometimes considerably smaller, but not removed completely. Taking out every bit of buttock fat would leave a flat, uneven and often sagging result, and buttock fat also cushions you when you sit, so surgeons always leave a healthy layer.
Can a BBL Be Revised to Fix Asymmetry or Shape?
Often, yes. Revision is generally more effective than reversal, as it works with the volume you have rather than against it. Problems that can be improved include:
- Asymmetry, where more fat survived on one side: liposuction on the fuller side, extra grafting on the flatter side, or both.
- A boxy or “shelf” shape, softened by reducing the hips or lower buttock and redistributing fat higher up.
- Dents and ripples, filled with small amounts of fat once scar tissue has softened.
- Firm lumps from fat necrosis after BBL, which often soften over 3 to 6 months but can be treated if they persist.
Re-grafting needs spare fat, and if most of yours was used in your first BBL, revision is more limited. Any new fat is placed only in the subcutaneous layer, never into or beneath the muscle, under real-time ultrasound guidance.
Will My Skin Sag After a BBL Reversal?
It depends on how much volume is removed and how elastic your skin is. Skin stretched by a large BBL does not always shrink back when the fat underneath is reduced, in the same way skin can sag after major weight loss or pregnancy. Younger, elastic skin often tightens well after a modest reduction; older or thin skin, stretch marks or a large reduction make loose skin more likely.
Where loose skin is likely, a buttock lift may be recommended instead of, or as well as, liposuction. A buttock lift removes excess skin and lifts the buttocks but does not add volume. There are four main approaches, chosen according to where the excess sits: upper, lower, butterfly and lateral. The operation takes around 2 to 3 hours and leaves a permanent scar, placed where possible in the underwear or swimwear line, and your own fat can be kept and folded under the skin (auto-augmentation) to preserve shape. Our guide to BBL vs butt lift explains the differences.
The scar is the main trade-off. Some people prefer to keep a little more volume than accept a long scar; for others, particularly after a large BBL or significant weight loss, a lift is the only route to a smooth, lifted result.
Can Losing Weight Reverse a BBL?
Losing weight will make a BBL smaller, but it will not reverse it. Surviving grafted fat behaves like the fat it came from: the cells shrink when you lose weight and enlarge when you gain it, so the volume can return. Our guide to what happens if you gain weight after a BBL explains this in more detail.
Weight loss is also uneven. Your buttocks may shrink more or less than your waist and thighs, and stretched skin may not tighten, so some people end up with a flatter, looser bottom rather than a smaller, neater one.
Can GLP-1 Medication Shrink a BBL?
GLP-1 receptor agonists, the class of weight-loss injections now widely prescribed for obesity and type 2 diabetes, can cause rapid weight loss that includes fat in the buttocks. A 2026 review of GLP-1 medication in aesthetic surgery highlighted soft tissue volume loss, skin laxity and the durability of surgical results as key concerns, and advised planning surgery around weight stability and nutrition[4]. A separate 2026 review noted that around a quarter to a third of the weight lost on these medicines is lean tissue, and that what happens to fat grafts when patients stop treatment and regain weight is still uncertain[5].
In practice:
- GLP-1 weight loss reduces a BBL, often noticeably, but the fat cells remain.
- Stopping treatment and regaining weight is likely to bring volume back.
- Rapid weight loss makes loose skin more likely, which can change whether you need liposuction, a buttock lift or neither.
- Surgery should wait until your weight is stable. For a BBL we ask for a stable weight for at least 3 months, or 6 to 12 months after major weight loss, and the same principle applies before a reduction.
If you use a GLP-1 medicine, tell your surgeon, as it affects timing, anaesthetic planning and what result is realistic.
BBL Regret: Why Do People Want Their BBL Reversed?
Wanting to change a BBL is more common than many people realise. The reasons we hear most often are:
- Changing taste. Very large, projected BBLs were fashionable in the late 2010s; many people now prefer a more athletic shape.
- Proportion. A large BBL can look out of balance with your frame, especially after weight changes.
- Weight gain, which enlarges grafted fat, sometimes unevenly.
- Practical problems, such as clothes not fitting or discomfort when sitting.
- An unsatisfactory result, such as asymmetry, a square shape or lumps.
Regret deserves careful thought before more surgery. A 2022 meta-analysis of 48 studies estimated that around 19% of people requesting cosmetic surgery had body dysmorphic disorder[6]. If your dissatisfaction is more about how you feel than a specific, visible problem, another operation may not help, and talking to your GP or a psychologist first can be worthwhile. A good surgeon will ask about your reasons and will not operate simply to follow a new trend.
When Can You Reverse a BBL?
Wait until your BBL has settled, at around 6 months, before deciding on a reduction. In the first weeks, swelling makes the buttocks look much bigger than the final result, and surgeons deliberately over-fill, as around 30 to 50% of transferred fat is usually reabsorbed. Skin softening, often called fluffing after BBL, happens at around 6 to 8 weeks, most of the result is visible by 3 months, and the final shape appears between 3 and 6 months.
The change continues for months. In a 2024 prospective 3D imaging study, the proportion of grafted fat retained in the buttocks fell from 77.9% at 3 months to 64.7% at 6 months[7]. A BBL that feels too big at 6 weeks may look right at 6 months.
If you had your BBL at Centre for Surgery, revision is discussed at your 6-month review, and you can be seen sooner if you are worried. Contact the clinic straight away about a firm, painful or red area rather than waiting.
Real Centre for Surgery patient, photographed at least six months after BBL surgery.
A settled result like this is the right point to judge whether you want any change. You can see more in our BBL before and after photos.
Can a Liquid BBL Be Reversed?
Yes, if it was done with hyaluronic acid filler. A liquid BBL, or non-surgical BBL, uses injectable filler rather than your own fat, and hyaluronic acid filler can be broken down with an enzyme called hyaluronidase. A 2024 review described hyaluronidase as essential in aesthetic practice, as it can safely treat most hyaluronic acid filler problems, with ultrasound guidance improving accuracy[8]. The filler also wears off naturally, usually within 12 to 18 months.
Surgical fat is different. No enzyme or injection dissolves fat grafted in a BBL, so a surgical BBL can only be reduced with surgery.
At Centre for Surgery, the non-surgical butt lift uses HYAcorp hyaluronic acid body filler only, injected by surgeons in a sterile theatre under ultrasound guidance, giving a modest change over 1 to 3 sessions. Our guide to the liquid BBL in the UK covers how it works, how long it lasts and how it compares with surgery.
Regulation is tightening. In August 2025, the Department of Health and Social Care announced that the highest-risk non-surgical procedures, such as non-surgical BBLs, should only be carried out by qualified healthcare professionals at CQC-registered providers. On 21 October 2026 it proposed that fillers injected anywhere other than the face, including liquid BBLs, be legally defined as cosmetic surgery so that only doctors could perform them, with legislation planned for spring 2027[9].
Can Illegal Butt Fillers Be Removed?
Sometimes, but rarely completely. Some “butt injections” given outside regulated clinics, in the UK or abroad, use permanent materials such as liquid silicone or polyacrylamide gel. These are not hyaluronic acid, so hyaluronidase has no effect and they cannot be dissolved.
Permanent fillers can spread through the tissues, migrate and cause chronic inflammation, hard nodules, infection and pain, sometimes years later. In a 2025 Dutch study of 72 patients treated for complications of permanent gluteal or hip fillers, the most common problem was inflammation of the fat layer (panniculitis), and treatment ranged from antibiotics and compression to laser treatment and surgery[10]. Most patients had less pain afterwards, but the filler was not simply removed.
Surgical removal is complex, as the material is often mixed into fat and muscle rather than sitting in one pocket. Ultrasound or MRI is usually needed first to map it. If you have had injections and are unsure what was used, tell your surgeon, as undisclosed filler found during a reduction can change what is safe to do. Our guide to butt injections vs BBL explains the differences. Buttock implants, by contrast, can be removed or exchanged, including implants placed at other clinics.
What Is Recovery Like After a BBL Reduction?
Recovery depends on what is done:
- Liposuction only: no new fat is grafted, so the strict BBL no-sitting rule does not usually apply. Expect bruising and swelling, a compression garment for several weeks and around 1 to 2 weeks off desk work.
- Liposuction with fat redistribution: the new grafts need protecting as after a BBL, so avoid sitting directly on your buttocks for 2 weeks (have a BBL cushion ready if sitting is unavoidable), sleep on your front or side, and wear compression for 6 weeks.
- Buttock lift: a longer recovery, with care around the scar and a gradual return to sitting, bending and exercise.
Centre for Surgery runs regular post-operative pain audits, and combining TIVA with local anaesthetic has minimised or even avoided the need for opioid painkillers for many patients. Walk from the first day to lower the risk of blood clots. Call 999 for breathlessness, chest pain or coughing blood, and contact the clinic, or NHS 111 out of hours, for calf pain or swelling, fever or a red, hot incision.
How Much Does a BBL Reversal Cost?
The cost depends on what is needed: liposuction alone costs less than liposuction with fat grafting, and a buttock lift is a larger operation again. You will receive a personalised quote after your consultation, and our guide to BBL cost gives an overview of pricing in London. Finance isn’t available for BBL at Centre for Surgery, so the procedure is self-funded.
Frequently Asked Questions
What is BBL reversal surgery?
BBL reversal surgery is an operation to reduce, reshape or correct a previous Brazilian butt lift. It usually involves liposuction to remove some of the grafted fat, sometimes fat redistribution to correct dents or asymmetry, and occasionally a buttock lift to remove loose skin. It makes a BBL smaller or better shaped rather than undoing it.
Can you get a BBL removed?
Not completely. Surviving fat from a BBL becomes living tissue with its own blood supply, and liposuction cannot tell grafted fat from your natural fat. A surgeon can remove part of the volume to make your buttocks smaller, but cannot restore your exact pre-BBL shape, and fat placed in or under the muscle cannot be safely removed.
How do you reverse a BBL naturally?
There is no natural way to remove grafted fat. Losing weight shrinks fat cells in the buttocks, including grafted ones, so a BBL looks smaller, but the cells remain and the volume returns if you regain weight. Exercise changes muscle tone but cannot target fat in one area, and creams or massage do not reverse a BBL.
Why is my BBL disappearing?
Some volume loss is normal. Around 30 to 50% of transferred fat is usually reabsorbed in the first few months and swelling settles, so the buttocks shrink before the result stabilises at around 6 months. Later shrinking is usually due to weight loss. Our article on BBL shrinking explains what is normal.
Will my bum sag after a BBL reversal?
It can, depending on how much volume is removed, your age and your skin quality. Modest reductions in elastic skin often tighten well. Larger reductions, or skin stretched for years, are more likely to leave loose skin, and a buttock lift may then give the smoothest, most lifted result.
How long after a BBL can you get it reduced?
Most surgeons advise waiting until the result has settled, at around 6 months, and longer if scar tissue is still firm or your weight is changing. Earlier review is sensible for a specific concern such as a painful lump, but planned reduction surgery is best done once the final shape is clear.
Are BBLs out of style in 2026?
Tastes have shifted from very large, exaggerated results towards smaller, athletic and proportionate shapes, which is one reason BBL reductions have become more common. The procedure itself remains popular, but most people now ask for a natural result. Choose a shape that suits your frame rather than a trend.
How much does a BBL reversal cost?
The price depends on whether you need liposuction alone, fat redistribution or a buttock lift, so you will be given a personalised quote after consultation. Finance isn’t available for BBL at Centre for Surgery. If your BBL was done elsewhere, a different consultation fee applies for the assessment, and it is not redeemable.
BBL Reversal in London
BBL reduction and revision at Centre for Surgery are performed by GMC-registered surgeons at our CQC-regulated Baker Street hospital, rated Good overall by the CQC. Your surgeon will assess where your fat sits, the quality of your skin and what you want to change, and explain honestly whether liposuction, fat redistribution, a buttock lift or no further surgery is the right choice. Fat grafting is placed only in the subcutaneous layer under real-time ultrasound guidance, operations are performed under TIVA, and the consultant who assesses you performs your surgery. We recommend a two-week cooling-off period, and further consultations before surgery are free. Your initial consultation is £100, redeemable against the cost of surgery if you go ahead. If your BBL was performed elsewhere, a different consultation fee applies and it is not redeemable.
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, et al. 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 ↗
- 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 ↗
- Okoro SA, Lamb S. The latest trend in buttock aesthetics: Brazilian buttock lift reversal and buttock reduction. Aesthetic Surgery Journal Open Forum 2025;7:ojaf014. doi:10.1093/asjof/ojaf014 ↗
- Ersan M, Özturhan O. Effects of GLP-1 receptor agonists on aesthetic surgery practice: a contemporary review. Turkish Journal of Surgery 2026. doi:10.47717/turkjsurg.2026.2026-4-35 ↗
- Cuggy C, O’Broin E. Beyond skin laxity: GLP-1 receptor agonist-induced lean mass depletion and surgical tissue quality in aesthetic surgery: a narrative review. Aesthetic Surgery Journal Open Forum 2026;8:ojag163. doi:10.1093/asjof/ojag163 ↗
- Salari N, Kazeminia M, Heydari M, et al. Body dysmorphic disorder in individuals requesting cosmetic surgery: a systematic review and meta-analysis. Journal of Plastic, Reconstructive and Aesthetic Surgery 2022;75(7):2325–2336. doi:10.1016/j.bjps.2022.04.098 ↗
- Wang B, He P, Zhao R. B-ultrasound-assisted gluteal fat grafting in Asians: a prospective study of quantitative results from three-dimensional imaging and B-ultrasound analysis. Journal of Plastic, Reconstructive and Aesthetic Surgery 2024;94:12–19. doi:10.1016/j.bjps.2024.04.035 ↗
- Kroumpouzos G, Treacy P. Hyaluronidase for dermal filler complications: review of applications and dosage recommendations. JMIR Dermatology 2024;7:e50403. doi:10.2196/50403 ↗
- GOV.UK, Department of Health and Social Care. Cosmetic cowboys crackdown continues with new restrictions. 21 October 2026. gov.uk ↗
- Decates TS, Schoonen T, Onderdijk AJ, et al. A retrospective study of nonsurgical management options for permanent filler complications of the gluteal region. Plastic and Reconstructive Surgery Global Open 2025;13(6):e6815. doi:10.1097/GOX.0000000000006815 ↗
Related Articles
- Revision BBL
- BBL vs Butt Lift: What Is the Difference?
- BBL Shrinking: Why It Happens and What Is Normal
- Liquid BBL in the UK: What It Is, How Long It Lasts and Is It Safe?
