Face-changing surgery may lead to two kinds of facial paralysis:

Central facial paralysis, upper facial muscles are not paralyzed, eyes are closed, eyebrows are raised and brows are normal, lower facial muscles are paralyzed, the nasolabial groove of the affected side is shallow, the corners of the mouth are drooping, and the corners of the mouth are inclined to the healthy side when teeth are exposed.

The other is peripheral facial paralysis, which is divided into two types:

First, the facial muscles on one side of the face are completely paralyzed, the eyelids can't be completely closed, the mouth is drooping, the eyebrows are limited, the forehead line becomes shallow or disappears, the eyebrows are lower than the healthy side, the eyelids are cracked, sometimes tears overflow, the mouth is pulled to the healthy side when grinning or laughing, and the mouth is oblique oval, and the speech and pronunciation are unclear;

Second, when causing bilateral peripheral facial paralysis, the face is expressionless, the bilateral forehead lines disappear, the eyes can't be closed, the bilateral nasolabial grooves become shallow, the lips can't be closed, the mouth leaks, the food stays on the cheeks, and the speech is a bit vague.

The filler decomposes into garbage in the body.

Any medicine will definitely have side effects, and so will surgery. All operations are invasive and harmful to the body, and there are risks.