Your question requires far more context to give you a relevant, meaningful answer. You can probably figure out how to calculate your BMI and based on that how many pounds of body fat are currently have. If you then divide that by 3 kg, then you’ll have a ratio or proportion that the 3 kg weight loss represents. For the sake of simplicity, let’s take a 100 kg person who has a 40% body fat. That person would have 40 kg of fat on their body. If they lost 4 kg, then they lost 10% of their total body fat. Breast fat transfer is good for increasing breast size by 1/2 cup to maximum 1 cup under ideal circumstances in patients who are perfect candidates when done by a highly experienced and talented provider. Most patients get closer to 1/2 cup breast size increase when done by an experienced talented provider. Fat transfer does not change the shape of the breast in any meaningful way. It’s simply makes the breast larger. It is not a good operation for giving cleavage or creating any other breast shape. Delivering consistent quality, liposuction and fat transfer results is more difficult than most people believe in. Patients need to also be very leery of reviewing before and after pictures since early after results kill look very impressive from fat transfer but early results to not in anyway represent final results. To see accurate representations of what the procedure can accomplish requires knowing that after pictures were taken a minimum of three months from the date of the procedure but preferably, six months or longer. Patients who are having implant augmentations generally do not need to fat transfer and personally I don’t recommend doing them as combine procedures. There may be advantages for some patients and different providers may have different views on the topic. I recommend patient be highly selective of choosing providers before committing to having this procedure code. I recommend patients do that by having a minimum of five in person consultations before selecting a provider, and even then you may need to schedule more consultations to find us officially talented provider. Both Liposuction and fat transfer, have major variation and outcomes, depending on who does the surgery. Being board-certified and plastic surgery with years of experience, and an overall good reputation does not in anyway mean that somebody has mastered either Liposuction or fat transfer. During each consultation, ask each provider to open up their portfolio and show you their entire collection of before, and after pictures of previous patients, who had similar body characteristics to your own. An experienced provider should have no difficulty showing you at least 50 sets of before, and after pictures of commonly performed procedures. Being shown a handful of preselected images, representing the best results of a providers career is insufficient to get a clear understanding of what average results look like in the hands of each provider or how many of these procedures anyone provider has actually done it. Like I mentioned earlier, it is also paramount that you know with certainty, when after pictures were taken in relationships, the procedure. do not assume that providers are showing you long-term results when it comes to fat transfer. When in doubt, slow down and schedule more consultations. Patient should be far more selective than I ever thought necessary when it comes to both Liposuction and fat transfer procedures trade, these procedures are permanent an irreversible. If done poorly, these procedures can leave people disfigured. As this is especially true for Liposuction. Patients having more than one operation should have reviewed and vetted each provider for each of the operations they are scheduled to undergo. In other words, if you’re having breast augmentation with implants with fat transfer then you need to make sure that that provider has a solid track record with consistent before and after pictures for each of the three procedures you’re having done. Hybrid breast augmentation is a vague term, and I suggest you see more definitive language to explain your upcoming procedure. If you have questions, I suggest you contact your provider. Your surgeon is ultimately responsible for the outcome of the procedure and you are responsible for choosing that provider. I recommend patients give them self sufficient time before scheduling surgery without the need for having decision-making last minute.Best, Mats Hagstrom, MD