Hyaluronic acid is a substance existing in the human body itself, so there is no need to worry about the side effects of hyaluronic acid. The risk of hyaluronic acid for temple breast augmentation is mainly because the temple structure is more complicated than other parts of the face, and it is necessary to grasp the injection dose and injection level more accurately. Generally, a small amount should be used many times, and the injection dose should be carefully controlled at different injection sites. Otherwise, collision, vascular embolism and uneven filling effect are easy to occur.