Revision BBL: When and How a BBL Is Corrected

A revision BBL is a second operation to correct the result of a previous Brazilian butt lift, using further fat grafting, liposuction, a buttock lift or buttock implants, alone or in combination. Most revisions treat asymmetry, too little or too much volume, dents, an unwanted shape, or firm lumps where grafted fat has died. Revision surgery is usually planned once the first result has settled, which at Centre for Surgery means discussing it at the 6-month review, although you can be seen sooner if something worries you.

A BBL revision is harder than a first operation, so the aim is a clear improvement rather than a perfect reset. This guide explains why BBLs are revised, when, what each option involves, recovery, and what to expect if your first Brazilian butt lift was done elsewhere. If your main aim is to go smaller, our guide on whether you can reverse a Brazilian butt lift covers reduction in detail, and our article on BBL in Turkey explains why so many revision patients had their first operation abroad.

What Is a BBL Revision?

A BBL revision, also called a revision Brazilian butt lift, secondary BBL, BBL correction or BBL touch-up, is any further operation on the buttocks and surrounding areas after a first BBL. It can be as small as a fat top-up to one side or as large as a full reshaping with liposuction, fresh grafting and skin removal. A second BBL done purely for more size overlaps with revision, and many patients want a little more volume as well as a better shape.

Every revision follows the same safety rules as a first operation. At Centre for Surgery, fat is placed only in the layer under the skin, above the gluteal muscle, never into or beneath it, under real-time ultrasound guidance with a blunt cannula, as a day case under TIVA (total intravenous anaesthesia).

Why Do People Need a Revision BBL?

Most BBLs settle well, but some leave a result that needs correcting. A 2026 systematic review of 18 studies and 12,032 patients in Plastic and Reconstructive Surgery ↗ found non-embolic complications in 2.67% of gluteal fat transfers. Contour irregularities made up 32% of these, asymmetry 26%, fat necrosis 14%, infection 13% and oil cysts 11%^[1].

Asymmetry

One buttock looks larger, higher or a different shape from the other. Fat may have survived better on one side, the buttocks may have been uneven before surgery, or the pelvis or spine may tilt them. Our guide to uneven buttocks and glute imbalance explains the underlying causes, which need to be understood before trying to even things up.

Too Little Volume

Around 30–50% of transferred fat is reabsorbed after any BBL, and surgeons plan for this by over-filling slightly. If more is lost than expected, the result can look flat. Smoking, vaping, sitting on the buttocks too early and large weight loss all reduce fat survival. In one series of 916 BBLs, 1.5% of patients had a further procedure for volume and 0.44% for asymmetry^[2].

Too Much Volume

Some patients find the result larger than they wanted, or it grows after weight gain, as grafted fat behaves like any other body fat. A BBL reduction uses liposuction to remove some of the grafted fat and reshape the buttocks.

Dents and Contour Irregularities

Dents, ridges and lumpy patches can come from uneven fat survival, fat placed in clumps, scar bands tethering the skin, or liposuction that removed too much fat from a donor area such as the hips or thighs. Our guide to preventing dents after a BBL explains why they form and which settle on their own.

Shape

Some results have enough volume but the wrong shape: a square look, a shelf at the top of the buttocks, fullness that sits too low or too wide, or a waist that was not slimmed enough. Shape is usually corrected by redistributing volume, with liposuction in one zone and grafting in another.

Fat Necrosis and Oil Cysts

Grafted fat that does not establish a blood supply can die and leave firm, sometimes tender lumps, and fat that liquefies can form oil cysts. Many small lumps soften over 3 to 6 months, but large, painful or persistent ones may need drainage or removal, followed later by grafting to restore the contour. Our guide to fat necrosis after BBL covers diagnosis and treatment.

Can a Botched BBL Be Fixed?

Usually it can be improved, which is not the same as being undone. “Botched BBL” is an informal term for a result that is visibly uneven, lumpy, misshapen or complicated by infection or tissue damage. Most of these problems can be made noticeably better, but scarred tissue rarely behaves like untouched tissue, and a surgeon who promises a flawless reset is overpromising.

• Asymmetry and low volume respond to fat grafting.
• Excess or misplaced volume responds to liposuction.
• Dents and tethered skin can be improved by releasing scar bands and grafting fat underneath.
• Loose or sagging skin needs a buttock lift.

Harder to change are widespread scarring after infection or necrosis, skin stretched beyond its ability to recoil, and damage from non-medical fillers or other substances injected into the buttocks. Poorly healed incision scars can often be revised at the same operation.

How Soon Can You Get a BBL Revision?

You do not need to wait to be seen. If something worries you at any stage, you can be assessed sooner. What waits is the revision operation itself, which at Centre for Surgery is discussed at the 6-month review, once the result has settled. Waiting matters for four reasons:

• Swelling hides the real result. Swelling peaks at 3 to 5 days, the skin softens or “fluffs” at around 6 to 8 weeks, most of the result shows by 3 months and the final shape by 3 to 6 months.
• Fat is still being lost. Around 50–70% of transferred fat survives and is stable from about 6 months. In a prospective ultrasound study of 50 women, gluteal fat thickness fell by an average of 18% between surgery and 12 months^[3].
• Scar tissue needs to soften. Firm early scar makes the cannula harder to control and lowers the survival of fresh fat.
• Some problems settle on their own. Early lumps, firmness and mild unevenness often improve without surgery.

Published series reflect this timing: in a study of 106 BBLs, the two patients who wanted less fullness at the sides had their revision 6 months after the first operation^[4]. After infection or extensive fat necrosis, your surgeon may advise waiting longer.

Some problems should not wait. Contact the clinic promptly about a lump that is growing, hot, red or painful, a wound that is leaking or opening, or a fever. Call 999 for breathlessness, chest pain or coughing up blood.

Revision BBL Options: What Can Be Done?

Most revisions combine more than one technique, and the plan depends on what needs correcting, how much spare fat you have and how your skin has responded.

Further Fat Grafting

Secondary gluteal fat grafting is the most common revision. Fat is harvested from areas not fully used the first time, purified and placed in the subcutaneous layer where volume is missing, into dents or onto the smaller side. A second round of grafting does not appear inherently more dangerous when the same rules are followed. In a 2026 review of 7,000 consecutive subcutaneous-only BBLs in Aesthetic Plastic Surgery ↗, secondary procedures made up 3% of cases and had complication rates similar to first operations, with no fat embolism recorded^[5]. Scarred areas hold fresh fat less well, though, so a second session cannot always add as much as the first, and more than one session is sometimes planned.

Liposuction to Reduce or Reshape

Liposuction removes grafted fat where there is too much and refines the surrounding areas. It is the main tool for a BBL reduction and for fullness that sits too wide or too low, and it is often combined with grafting in another zone. Grafted fat in scarred tissue is firmer and slower to remove, so a large reduction may be staged to avoid new dents. If the waist and flanks were under-treated first time, further liposuction there restores the contrast a BBL relies on.

Buttock Lift

A buttock lift removes loose, sagging skin rather than adding volume. It suits skin that has stretched after a large BBL, a BBL reduction or major weight loss. It leaves a permanent scar placed to sit within the swimwear line, and it can be combined with fat transfer to restore volume at the same time.

Buttock Implants

When there is not enough donor fat for meaningful grafting, buttock implants provide volume that does not depend on fat survival. At Centre for Surgery, solid silicone implants are placed within the gluteal muscle through a single incision in the cleft between the buttocks, and fat can be grafted over the implant to smooth the contour. Studies of secondary gluteal augmentation describe this hybrid approach, an implant plus fat in the subcutaneous layer, as an effective way to correct earlier results^[6]. Implants carry their own risks, including infection and implant movement, and recovery is longer.

Is a Revision BBL Safe?

A revision carries the same main risk as a first BBL: fat entering the large veins in and beneath the gluteal muscle and travelling to the lungs. The 2017 ASERF Task Force survey of 692 surgeons in Aesthetic Surgery Journal ↗ linked injection into the deep muscle with significantly more fatal and non-fatal fat embolism, and advised against deep muscle injection, cannulas smaller than 4 mm and pointing the cannula downwards^[7].

Revision adds a practical difficulty. Scar tissue resists the cannula, and a cannula that breaks through a firm band can travel further or deeper than intended. Real-time ultrasound lets the surgeon see the cannula tip and the tissue layers throughout. In a series of 4,150 ultrasound-guided BBLs, ultrasound confirmed that fat consistently stayed above the deep gluteal fascia, and deposits could then be evened out to correct contour deformities^[8].

What Limits a BBL Revision?

Scar tissue. Every BBL leaves internal scarring along the cannula paths, and infection or fat necrosis leave more. Scarred tissue has a poorer blood supply, so fresh fat survives less well, and it is stiffer, which makes smooth reshaping harder and limits how far the skin will stretch to accept new volume. This is one reason some revisions are staged.

Donor fat. A full BBL typically transfers 1,600 to 2,000 ml of fat, and the abdomen, flanks and lower back are often used up the first time. A revision relies on what remains, such as the thighs, arms or upper back. Slim patients may not have enough for another meaningful transfer; our guide on what happens if you don’t have enough fat for a BBL explains the alternatives. Gaining weight purely to create donor fat is not recommended, as the result changes when the weight comes off.

Skin and history. Skin stretched by a large volume may not recoil fully once volume is removed, leaving looseness only a buttock lift will correct. When the first operation was done elsewhere, the volumes, the injection plane and whether anything other than fat was injected may be unknown, and imaging is sometimes needed before planning.

BBL Revision After Surgery Abroad

Many patients seeking a BBL revision in the UK had their first operation overseas. A 2026 national analysis of the BAAPS cosmetic tourism complications database in Aesthetic Surgery Journal ↗ found that 76% of 198 patients treated in the UK after cosmetic surgery abroad had travelled to Turkey, almost half needed an operation once home, and inadequate aftercare and flying too soon were recurring factors^[9].

Centre for Surgery sees patients with complications or poor results after a BBL abroad. The first step is always a face-to-face assessment of what has happened and what can safely be done, not a quote based on photographs. The NHS treats emergencies such as infection, but it does not usually correct cosmetic results such as asymmetry, dents or lost volume. Bring your operation note (ideally in English) with the surgeon’s and hospital’s names, the fat volumes placed on each side if you have them, photographs from before surgery and during recovery, details of any infection or further procedures, and a list of anything else injected into the buttocks, including fillers.

What Happens at a Revision BBL Consultation?

Your surgeon will ask what bothers you most, review your records, examine the buttocks, waist and possible donor areas, assess skin quality and scarring, and take photographs. You will then discuss which problems can be improved, which cannot, whether one operation or a staged plan is safer, and what recovery involves.

If you had your BBL at Centre for Surgery, any concern can be raised with the nursing team or at your reviews, which are available at 6 weeks, 3 months and 6 months. If your BBL was performed at another clinic in the UK or abroad, a different consultation fee applies and it is not redeemable against treatment; your patient coordinator will confirm the arrangements when you book. The consultant who assesses you performs your surgery, further consultations before surgery are free, and we recommend a two-week cooling-off period before you go ahead.

BBL Revision Recovery: What to Expect

When fat is grafted to the buttocks, recovery follows the same rules as a first BBL, as the new fat needs the same protection while it gains a blood supply. Our BBL recovery guide covers each week in detail.

• Going home: you are monitored for 1 to 3 hours and need a responsible adult to take you home and stay for 24 hours.
• Sitting and sleeping: no sitting directly on your buttocks for 2 weeks, and sleep on your front or side. Have a BBL cushion ready before surgery for times sitting cannot be avoided, and keep toilet visits brief, leaning forward. Our guide on when you can sit after a BBL sets out the timeline.
• Compression: a garment over the liposuction areas for 6 weeks, day and night, with the buttocks left free.
• Activity: walking from day 1, light cardio such as walking (not cycling) from week 3, and full exercise including weights from 6 weeks.
• Work and driving: 1 to 2 weeks off, desk work from about day 7 if you can avoid sitting on your buttocks, and no driving for 4 weeks.

A revision involving only liposuction, a buttock lift or implants has different instructions; after buttock implants, for example, you use a cushion for 8 weeks and return to exercise from 8 weeks. Centre for Surgery runs regular post-operative pain audits, and combining TIVA with local anaesthetic has minimised or even eliminated the need for opioid painkillers for many patients. You have your surgeon’s direct number for the first 24 hours, then the clinic on 020 7993 4849, with a nurse-led wound check at 7 to 14 days and a surgeon review at 6 weeks. If your surgeon recommends lymphatic drainage massage, you will be referred to a qualified therapist and pay the therapist directly.

Revision BBL Before and After

The photographs below show a real Centre for Surgery patient before and after revision buttock surgery. They are blurred by default; tap to reveal.

Tap to reveal

Tap to reveal

Real Centre for Surgery patient, before and after revision buttock surgery. Individual results vary.

You can see more results across different body types in our BBL before and after photos.

Is a Revision BBL Worth It?

It can be, if the problem is clear, its cause is understood and your tissues allow a real improvement. Obvious asymmetry, a flat or misshapen result, deep dents or painful lumps often improve a great deal with a well-planned revision. For small irregularities visible only in certain light, the risks and recovery of another operation may outweigh the gain.

How Much Does a BBL Revision Cost?

The cost depends on what is involved: a small fat top-up costs less than a full reshaping with liposuction, grafting and a buttock lift, and buttock implants cost more than a BBL. You receive a written quote after your consultation, and our guide to how much a BBL costs in London explains what the fee includes. Revision surgery for Centre for Surgery patients is charged in line with our revision policy, which your patient coordinator will explain before your original operation. Finance isn’t available for BBL at Centre for Surgery, so the procedure is self-funded. Compression garments and prescribed medication are bought separately.

Frequently Asked Questions

Revision BBL in London

Revision BBL surgery at Centre for Surgery is performed by GMC-registered surgeons at our CQC-regulated Baker Street hospital, rated Good overall by the CQC. We see patients who had their first BBL with us and patients whose BBL was performed at another clinic in the UK or abroad, starting with a face-to-face assessment. Your surgeon may recommend further fat grafting, liposuction, a buttock lift, buttock implants or a staged plan, with any fat placed only above the gluteal muscle under real-time ultrasound guidance and surgery carried out under TIVA. The consultant who assesses you performs your surgery, further consultations before surgery are free, and we recommend a two-week cooling-off period. Your initial consultation for a first BBL is £100, redeemable against the cost of surgery if you go ahead; for revision of surgery 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

1. Domínguez-Millán R, Hoyos A, Cárdenas-Camarena L, et al. Non-embolic complications of gluteal fat transfer: a systematic review of the literature. Plastic and Reconstructive Surgery 2026. doi:10.1097/PRS.0000000000013408 ↗
2. Everett M, Morales R, Newall G, et al. Safest practices for autologous buttock augmentation with fat grafting using a roller pump injection technique. Aesthetic Surgery Journal 2018;38(7):751–762. doi:10.1093/asj/sjx113 ↗
3. 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 ↗
4. Rosique RG, Rosique MJF, De Moraes CG. Gluteoplasty with autologous fat tissue: experience with 106 consecutive cases. Plastic and Reconstructive Surgery 2015;135(5):1381–1389. doi:10.1097/PRS.0000000000001167 ↗
5. Güzey S, Ergan Şahin A. Brazilian butt lift: what we learned over 7000 patients? Aesthetic Plastic Surgery 2026;50(14):5864–5872. doi:10.1007/s00266-026-05899-9 ↗
6. Lee JW, Kang MG, Park SS. Secondary gluteal augmentation: surgical technique and outcomes. Plastic and Reconstructive Surgery 2018;141(6):1371–1382. doi:10.1097/PRS.0000000000004407 ↗
7. 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 ↗
8. Pazmiño P, Del Vecchio D. Static injection, migration, and equalization (SIME): a new paradigm for safe ultrasound-guided Brazilian butt lift: safer, faster, better. Aesthetic Surgery Journal 2023;43(11):1295–1306. doi:10.1093/asj/sjad142 ↗
9. Goodarzi MR, Nugent NF, Pacifico MD, Tyler M, Wokes JET. Beauty abroad, burden at home: complications and National Health Service impact of cosmetic tourism. Insights from the British Association of Aesthetic Plastic Surgeons national database. Aesthetic Surgery Journal 2026;46(11):1177–1183. doi:10.1093/asj/sjag056 ↗

Related Articles

• Can You Reverse a Brazilian Butt Lift?
• Fat Necrosis after BBL – Causes & Solutions
• How To Prevent Dents After A BBL
• Is BBL in Turkey Safe? What UK Data Shows About BBL Abroad