In the email consultation email, a guest wrote-in anatomy, the foundation cannot be said in general, but we have considered it in detail professionally. The base can be subdivided into the base of the columella and the base of the alar (around the piriform hole). The depression in the middle of the face is considered to be poor and sour by many people, so pad surgery is called plump surgery in Korea, with the purpose of making the face plump and plump through pad. I think a lot may refer to the base next to the alar pad, that is, around the pear-shaped hole. It will certainly help to improve this position, but we should not blindly exaggerate the help of this position. Because not all facial depressions can be achieved by raising the base of the alar. We should fully realize that in many cases, the midfacial depression is not only the basal depression of the alar, but also the bones in the whole midfacial region are not fully developed. If it is accompanied by protrusion of upper and lower teeth, the problem of basal depression may be more prominent. Depression may also be caused by facial soft tissue factors, such as loose tissue and deep nasolabial groove. These appearances involve skin, muscles, ligaments, etc., which are not determined by a single factor, but the result of comprehensive factors. If there are other factors involved, it is not just the cushion lining that can achieve the perfect effect. In nasal surgery, we pay more attention to the improvement of nasal area, because nasal area is recognized as a difficult part. Both the alar base and the columella base are geographically close to the tip of the nose, so they must be considered by us. Whether to pad or not is not because it is difficult or we don't pay attention to it, but because of the overall surgical effect. In operation, it is relatively simple to pad the alar base than the columella base. In many nasal operations, the length of the columella, the base of the columella and the tip of the nose are often corrected together. Let's call it constraint correction. The nose is a very three-dimensional organ. If you think one of the factors is not good-looking, it is estimated that the other parts will not develop perfectly. In the analysis of many preoperative photos, the height of the nose is insufficient, which is often accompanied by the invagination and shortness of the nose columella. If the maxilla is prominent, the problem of basement depression is more obvious. The purpose of correcting these is to make the angle and lines of the nose conform to the aesthetic feeling. You will learn more from the following two practical cases of surgery. In terms of material selection, the base near the alar has low requirements for materials, such as silica gel, expansion body, autologous cartilage and so on. The base of nasal columella, which can be understood as the part between the tail of nasal septum and bony nasal spine, is a relatively soft part, and it is best to pad its own cartilage. According to our experience, if the nose is raised as a whole, including the correction of the column, it may achieve a very good-looking effect, so there is no need to pad the root of the nose wing, and of course some money can be saved. Moreover, after the nose is treated, the thick alar will be elongated and thinned, forming a beautiful alar arc. Surgical example: Contrast photos were taken before and 7 days after operation to fill the nasal floor. Before operation, facial depression, nasal columella base and alar base were all depressed. The drooping nose tip is too close to the upper lip, which affects the appearance. Before and after the operation, the contrast photos showed that the nasal base was full and the nasal columella was seriously invaginated. The problems of columella and alar base were corrected by lengthening columella and stretching alar during operation.