Facial injection in order to avoid blood vessels, can be carried out from the following points: choose regular institutions, appropriate cold compress, appropriate pumping back after injection. It is recommended that patients perform facial injection operations under the guidance of professional doctors. 1. Choose a formal institution: when patients need to carry out facial injections and other medical projects, it is necessary to go to a regular hospital or institution, choose a regular doctor to operate, because only experienced medical personnel can grasp the anatomy of the face, so as to better avoid blood vessels. 2. Appropriate cold compress: Appropriate cold compress can make blood vessel contraction, so as to reduce the dose of drugs injected into the blood vessel. 3. Appropriate retraction: If blood is found in the blood vessels during retraction, then the blood vessels have been touched and the injection site should be changed immediately. When the patient for facial injection, it is recommended to go to the regular hospital in a timely manner, under the guidance of a professional doctor for facial injection operation.