BBL Results Month by Month: When You See the Final Shape

A Brazilian butt lift does not show its final shape on the day you fly home from Istanbul. The buttocks look largest right after surgery, then lose some volume as swelling settles and part of the transferred fat is reabsorbed. One published ultrasound study followed 50 consecutive women for 12 months after a BBL (2019): gluteal fat thickness at 12 months was on average 18% lower than immediately after surgery. Below is what changes in each phase, what is normal, and when to contact the surgeon's team.

Why the buttocks get smaller after a BBL

Two things happen at once. Swelling from the liposuction and the injections fades, and not every transferred fat cell gains a blood supply. Cells that do not survive are absorbed by the body, which is why surgeons usually plan for some loss when they decide how much fat to inject.

The 12-month figure comes from Cansanção and colleagues, published in Plastic and Reconstructive Surgery in 2019. They measured the subcutaneous fat layer of the buttocks with ultrasound in 50 consecutive patients. Right after surgery the layer was on average 56.5% thicker than before. At 12 months it had decreased by an average of 18%, with a range of 6.8% to 24.8% between patients. So the loss differs from one person to the next, and nobody can promise you an exact number in advance.

Weeks 1 to 2: safety first, shape later

In the first days you will be swollen and bruised at the liposuction sites, and you will be asked not to sit directly on your buttocks. Partner surgeons follow the subcutaneous-only technique recommended by the Multi-Society Task Force for Safety in Gluteal Fat Grafting: fat goes into the layer under the skin and above the gluteal muscle, never into or below it, because deeper injection is linked to fat embolism. The size you see in the mirror now is not your result: it is fat plus fluid.

Your discharge date depends on the surgeon's final check, and our guide on how long to stay in Istanbul after a BBL explains how that decision is made. Direct flights from Istanbul to Milano Malpensa (MXP), Bergamo (BGY) or Roma Fiumicino (FCO) take about three hours. Book the return flight only after the surgeon has cleared you to travel.

Weeks 3 to 6: swelling still hides the result

This is the phase in which many patients worry that the result is uneven. One side may look fuller, some areas feel firm, and the liposuction areas can still be numb. Swelling settles unevenly, so asymmetry in these weeks is not a verdict on the final shape. The garment you wear over the liposuction areas helps the skin settle; the timing is set out in our compression garment guide, week by week.

Months 1 to 3: the fat integrates

A 2025 cohort study in Aesthetic Surgery Journal by Durán Vega and colleagues followed 114 women after buttock fat grafting with ultrasound every month for the first three months. Eight patients (7%) had minor complications: seven fat cysts and one area of fat necrosis. There were no infections and no fat embolisms, and no patient needed another operation. By the six-month scan only two small cysts, of 3 mm and 5 mm, were still visible. Before a long journey home in these months, check the rules for flying after a BBL as well.

Lumps such as fat cysts can occur (7 of 114 women in that study), and most cleared within six months, but every lump should be reported. Contact the surgeon's team through your assistant without waiting if a lump grows, turns red, hot or painful, if a wound leaks, or if you develop a fever. When you may sit normally again is the surgeon's call; the usual stages are covered in sitting and sleeping after a BBL.

Months 3 to 6: a first fair comparison

In the 2025 cohort, the six-month ultrasound showed proper integration of the injected fat, and only two of the seven cysts remained. This is a good point for a first honest comparison with your pre-operative photos. Take them in the same light, from the same distance and in the same pose, because a change of angle can look like a change of volume.

Month 12: the point to judge your result

The longest follow-up in the 2019 study was 12 months, so that is a fair point to judge a BBL. If you still want more volume then, a second fat transfer is possible when you have enough donor fat; the surgeon will decide whether it is reasonable and how long to wait. Judging the result earlier, while swelling remains, risks asking for a correction that is not needed.

What helps the transferred fat survive

Surviving fat cells behave like fat anywhere else in the body. A large weight loss after surgery shrinks them and the buttocks with them; weight gain enlarges them. Reaching a stable weight before surgery and holding it afterwards protects the result. Follow the surgeon's rules on pressure, sitting and the compression garment, and do not smoke or use nicotine, which reduces blood supply to healing tissue.

What a BBL costs in Istanbul

A BBL arranged by Estetica starts at €4,050. That package covers the partner surgeon's fee and hotel nights at the Deniz hotel; flights are never included. You can see what the price covers on the BBL in Istanbul page. The first call with your assistant is free, and a video call with the surgeon costs €30, credited if you book. A €500 deposit secures the date; it is refunded if you cancel at least 14 days before surgery and before your flight is booked, otherwise it becomes a 12-month credit.