Hyaluronic acid (also known as hyaluronic acid) is injected into the temporal hollows to augment the temples. Since hyaluronic acid is the body’s own component, it is widely found in the cartilage of joints, skin dermis and other tissues, so it is compatible with human tissue and has no rejection and allergic reaction, which is widely favored by beauty seekers. However, hyaluronic acid injection for temple augmentation cannot maintain the effect permanently, and the absorption time limit is different for different products, so it needs to be replenished timely according to your own situation. Due to the rich blood flow and complex structure of temporal area, if the injection dose and level are not well mastered, complications such as unevenness, bruising, vascular embolism leading to extensive skin necrosis, vision loss, cerebral infarction and even death can easily occur. If injected into the blood vessels, severe cases may cause double vision and coma. Therefore, the physician is required to be familiar with facial anatomy and follow the principle of small amount and multiple injections to avoid complications as much as possible. In addition, product selection is also important. Highly cross-linked products are suitable for use in areas and levels with high tissue tension, and the effect will be better than that of low cross-linked products. Attention should also be paid to the quality of the product. If substandard products are injected, they may cause complications such as sclerosis, nodules and infections. Therefore, it is recommended to choose a regular hospital for consultation and ask a qualified physician to inject qualified hyaluronic acid to avoid the risk in order to obtain satisfactory results.