Swelling and bruising differ according to surgery duration and method, and what type of thread is used. When a delicate area is lifted by a thick surgical thread with stubborn cogs, the swelling and bruising can be worse. Because CDU surgeons are senior surgeons with extensive experience, and because they provide a personalized surgical method and perform delicate surgery, the result is not only much more effective, but the possibility of swelling and bruising is also relatively low.