When you go to the hospital to consult the method of face slimming, the doctor will generally provide to the two programs, one is to play the face thinning injection (botulinum toxin), and the second is to grind the bone to thin the face, the specific use of which method is based on the size of the face and bones, as well as the requirements of the patient to decide. Botulinum toxin can only be a small amount of face thinning, if you want to drastically change the shape of the face will have to grind the bones to thin the face, today we will take you to understand the hazards of grinding the bones to thin the face. 1, traumatic, slow recovery. Bone grinding face thinning is a project is not small surgery, is the face of the bone grinding small, postoperative swelling and pain is relatively large, the recovery is also relatively slow, generally to 1 ~ 3 months. 2, the risk is big. The risk mentioned here is divided into two aspects, one of which is the risk of surgery, our face is very rich in nerves and blood vessels, in the process of surgery is required to contact our nerves and blood vessels, if the operation is not careful will lead to nerve damage or blood vessel rupture. On the other hand, because many people do not go to the hospital for a series of body checkups when doing bone grinding and face slimming surgery, a lot of hidden diseases are not detected, and in the process of surgery or after the end of the surgery, there is the possibility of stimulating the body to the original disease and thus triggering postoperative complications, which may be very life-threatening. 3, postoperative sequelae. Many people will have postoperative sequelae after this surgery, such as facial asymmetry, facial nerve sensation thin impact, serious will also lead to unnatural facial expression. According to the above content, we also understand that there are a series of risks of bone grinding and face slimming, we must be careful when doing this surgery, pay attention to the preoperative examination and postoperative care, in order to let us have a beautiful face to a greater extent.