Some patients require a staged BBL to achieve the desired result, particularly when they need larger augmentation and/or their excess fat is not enough. Oftentimes, the secondary procedure takes several months after the initial surgery to help the patient gain a little bit of weight. However, there are also some patients who only require one treatment because their fat reserve is sufficient to provide the desired results. Simply put, only a personal consultation to a board-certified plastic surgeon can answer you. Take note that you should choose a board-certified PS based on his skills and qualifications, rather than his discount procedure alone. Best wishes.