Brazilian butt lift (BBL)

A Brazilian butt lift (gluteal fat grafting) uses the patient's own fat to improve the shape, volume, projection and proportion of the buttocks. Despite the name it does not lift the buttocks or remove loose skin — it is a fat-transfer and body-contouring procedure. Much of the result comes from the liposuction: refining the waist, flanks and lower back changes the transition into the buttocks and can improve apparent projection before any fat is transferred. The aim is a balanced contour proportionate to the patient's body, not maximum size.

Anaesthetic: General
Hospital stay: Day case or overnight
Time off work: About 2 weeks
Final result: Assessed at 3–6 months

A general guide only — your own timeline is confirmed at consultation.

What it involves

Performed under general anaesthetic. Fat is harvested through small incisions from areas such as the abdomen, waist, flanks, lower back, hips or thighs, then processed to separate usable fat from fluid, oil and damaged cells. The prepared fat is placed in small amounts into the fatty layer beneath the skin of the buttocks — never into or beneath the gluteal muscle, where the large blood vessels lie. Real-time ultrasound guidance is used during placement to confirm the cannula stays above the muscle covering. The operation commonly takes several hours depending on the number of areas treated and the volume transferred, and the volume is limited by the safe subcutaneous space available rather than by the size requested. Where the desired result cannot be placed safely in one operation, a smaller correction or a staged procedure is the safer route.

Who it may suit

May suit patients in good general health with a stable weight, enough donor fat to harvest, adequate fatty tissue beneath the buttock skin for safe placement, realistic expectations, and a willingness to follow the pressure restrictions during early recovery. It is not a weight-loss procedure. Very low body fat may mean insufficient donor fat is available. A BBL does not reliably correct significant loose or hanging skin, marked drooping, cellulite or stretch marks — substantial skin laxity may need a buttock lift or lower body lift, which involve longer scars and a different recovery. Buttock implants are an alternative where donor fat is insufficient, with their own risks. Injectable silicone and unapproved permanent fillers must never be used for buttock augmentation.

Recovery

Swelling, bruising, tightness, tenderness and numbness are expected in both the donor areas and the buttocks. Most patients need about two weeks away from work, longer for physical work or more extensive surgery. Prolonged or direct pressure on the grafted areas can reduce fat survival, so sitting is limited for roughly the first two weeks — sleeping on the front or side, keeping sitting periods short, and using a pressure-relieving cushion where sitting is unavoidable. Regular gentle walking remains important throughout, to reduce the risk of blood clots. A compression garment is worn over the liposuction areas, positioned so it does not press on the grafted buttock. The buttocks may initially look larger than expected from swelling and transferred volume; some reduction over the first months is expected, and the result is usually assessed at three to six months.

This page is a general guide. Every procedure is planned individually — the details, risks and recovery relevant to you are discussed at consultation.

Patient information leaflet Download the full brazilian butt lift (bbl) leaflet (PDF)

Common questions

Is a BBL safe?

A BBL is a major operation and carries more risk than most other cosmetic procedures. The specific concern is pulmonary fat embolism — if fat enters an injured blood vessel it can travel to the lungs or heart, which can cause permanent injury or death. The vessels at risk sit within and beneath the gluteal muscle, so the single most important safety measure is keeping every bit of transferred fat in the fatty layer above the muscle covering, never into or under the muscle. Real-time ultrasound guidance is used during placement to confirm the cannula position. These measures substantially reduce the risk but cannot remove it, and the full range of risks — including blood clots, infection, contour irregularity and the need for revision — is set out in the patient information leaflet and discussed in detail at consultation.

Can I just ask for the size I want?

Not reliably. The volume that can be transferred is limited by how much safe space exists in the fatty layer beneath the buttock skin, and by how much donor fat is available. If the requested volume cannot be placed safely in one operation, the options are a smaller correction, a staged procedure, or a different procedure altogether. Patient safety takes priority over a requested buttock size, and a surgeon who agrees to any volume on request is not managing that limit.

How much of the fat lasts?

Not all of it. The transferred fat must establish a new blood supply to survive, and some is always absorbed — most of the reduction happens over the first several months. Survival is influenced by the quality of the donor fat, the harvesting and placement technique, the blood supply in the recipient tissue, nicotine use, pressure on the grafted areas during healing, and weight change afterwards. The amount retained cannot be predicted precisely, and some patients choose a second, staged procedure for additional volume. The fat that does survive behaves like fat elsewhere in the body, so it reduces with weight loss and enlarges with weight gain.

Why do the sitting restrictions matter so much?

During the early weeks the transferred fat is establishing its blood supply, and sustained direct pressure on it works against that. Following the sitting, sleeping and cushion instructions protects the result you have paid for. The balance to strike is that pressure relief must not become immobility — regular walking is still essential to reduce blood-clot risk after liposuction and general anaesthesia.

What about having it done overseas?

Worth thinking through carefully. Long-distance travel soon after surgery increases blood-clot risk, and complications are harder to manage once you are home — medical and travel insurance often exclude complications of elective cosmetic surgery. If you are considering it, verify the surgeon's qualifications and training, confirm the facility is properly regulated, establish that the surgeon personally performs the critical parts, ask directly whether fat is placed subcutaneously only and whether ultrasound guidance is used, and arrange follow-up care before you travel. Cost should not outrank surgeon training, facility standards, safe technique and aftercare.