Thread sculpture a month suddenly concave, may belong to the normal performance, but also may be related to improper operation. 1. Normal performance: line sculpture can be divided into line sculpture surgery and line sculpture tightening, line sculpture operation process, the need to lift the patient’s fascial layer, so that the whole face presents the effect of lifting; there may be a slight depression, the patient may also have bruises and swelling and other manifestations, generally will be relieved. 2. Improper operation: wire sculpture surgery needs to be buried, if the buried wire is not properly operated, part of the subcutaneous adipose tissue is not completely free, when the epidermal tissue is pulled, it will make the part of the formation of depressions; in addition, if the walking line is not completely hanging, or hanging shallow, there will be depressions. To summarize, if there is a need for wire sculpture surgery, from the safety point of view, you should go to a regular qualified hospital, and if you have any discomfort after the surgery, you need to inform the doctor in time.