The question about whether the filler material will shift after filling the lines is actually rather cliché. As I said in the previous video, there are several reasons for the formation of nasolabial folds. First, the physiological state of the nasolabial folds, small children will appear when they smile, mention the upper lip muscle, muscle and tendon relationship, pull out is the nasolabial folds, this is the normal physiological structure, but also the basis of facial expression. Secondly, the poor development of the nasal base causes the nasolabial folds to be deeper and a pit appears. Third, the malar muscle is more hypertrophic, this pile is more obvious when you smile, in fact, watch my video of the candidates should be clear, I personally myself is this situation. Fourth, sagging facial skin laxity, resulting in downward pull. Fifth, some candidates after filling the apple muscle, due to filling too much or filler material displacement, did not fill the corresponding location, resulting in deepening the nasolabial folds. This involves the filler material as well as the doctor’s some technical, point of view of the problem. For example, when hyaluronic acid is used to fill the nasolabial folds, it is often the case that the hyaluronic acid runs out of position. From the filling technique, must maintain a certain tunnel, this position is relatively have a barrier, filling don’t deliberately support it, may cause it to run to both sides, the end is the apple muscle is higher while the nasolabial folds are deeper. In terms of the characteristics of hyaluronic acid material, it has a certain degree of extensibility, with facial movement or kneading pressure, it may run out of position. If you use collagen or ADM particles, or autologous fat and other materials, it runs very little, as long as it did not run when you hit, it will not run later. Some candidates prefer hyaluronic acid, identified hyaluronic acid, that in the selection of hyaluronic acid also need to use large molecules of hyaluronic acid, because this hyaluronic acid will not shift too much, the doctor mastered the effect is also good. Facial expression is much, it will not cause the displacement of the material, facial expression is rich, it will not say that the strength is so strong that the material will be squeezed out of the degree. But it may cause accelerated absorption of the material. Regarding the displacement of the material, it is important not to rub vigorously when washing your face, and not to press your face at a beauty salon or other places, as this may squeeze the material away. Usually by following the doctor’s instructions and following the doctor’s directions, problems with material displacement are not uncommon.