Some candidates have inquired what should be done to address the sunken base of the nose due to aging. Is it better to have autologous fat filler or tumescent filler. First of all, we need to clarify what conditions require a nasal base and what conditions cause the depression of the nasal base. Some candidates say that the nasal base will be depressed after aging, which is actually a misunderstanding. Nasolabial folds are on the outside of the nasal base, forming a surface tissue structure, the nasolabial folds in the mouth of the candidate, the decree lines refer to the soft tissue aspect, due to the pulling of the facial muscles to form the depression, after long-term exercise will form nasolabial folds, with the increase in age will become more and more obvious. Some people think that nasolabial folds appear because of the depression of the base of the nose, but in fact, the depression of the base of the nose is always there, and it is constant and does not change much. As we age, the nasolabial folds deepen and the base of the nose becomes more concave. Normally speaking, it is normal to have some depression in the base of the nose, but if the depression is deeper, then you can consider filling. The materials include hyaluronic acid, tumescent, autologous fat, artificial bone, silicone, collagen, etc. Each material has its own advantages and disadvantages. For example, the most common hyaluronic acid can be injected directly into the surface of the bone surface to play a supportive role in the local area. After injection, it will be slowly absorbed by the body, but as the number of injections increases, the absorption will gradually slow down, but it will not be permanent. If autologous fat is used, the process may be a little more cumbersome, requiring fat to be removed from the body and processed for filling. If comparing to hyaluronic acid, it has the advantage of being permanent once it is viable, but the disadvantage is that it requires 2-3 fillings and a more cumbersome process of extraction. If it is more complicated, you can consider a bone graft at the base of the nose. Commonly, there are bentonite, medpor materials and so on. The advantage of expanders is that they have microscopic pores, which hold the implant in place as the surrounding tissue grows in and does not move. In the early years, silicone implants were used more often to fill the base of the nose, but in the later years, with the increase of cases and experience, it was found that they were prone to move after placement, and even penetrate out of the nasal cavity. The advantage of medpor prosthesis is that it has microporous holes, the disadvantage is that it requires a large incision and screw fixation, and although the surgical result is good, the procedure is relatively more invasive and complicated. In my personal experience, I usually use expanders for support. However, you can choose which material to use according to your own preference, and there is no absolute good or bad. For the height of the filler, it is usually a minimum of 5 millimeters, or around 8 millimeters if the depression is deeper. If the depression is very deep, it is not just a question of filling the base of the nose, but a comprehensive filling of the entire mid-face, personalized according to the specific situation.