Zhao Hongyi, president of the Third Hospital of Beijing Medical University, replied: I think there must be a limit for us to do nose plastic surgery or other plastic surgery. The so-called limit value is analyzed from two aspects, on the one hand, it is considered from the aesthetic design, because if any of our operations exceeds a certain range, then you must not meet our aesthetic standards, and then this operation must also be a failure. For example, the length of the nose, the height of the nose, or the relative angle between the nose and the forehead and lips, if you exceed a limit, it must be unsightly, then the other is that we consider it from the perspective of safety, such as our excessive pursuit of height or length, which may lead to an increase in the tension of our skin and may lead to ischemic necrosis of the skin. If it is serious, it may cause the whole nose. As you may know, once this happens to Michael Jackson's nose in the later period, beauty is not beautiful, but disfigured. Therefore, everyone must listen to the doctor's advice carefully, and make a reasonable plan according to this appearance change and the pursuit of limit, combined with their own conditions.