Hello, whether disfigurement or plastic surgery has caused great changes in appearance and facial features, you need to apply for an ID card again. If your appearance has changed a lot and your identity documents have not been updated in time, you will encounter a lot of troubles in your daily life. For example, places that need to use identity documents, such as flying, entry and exit, bank procedures, etc. , will encounter obstacles. Once the facial features and the data in the public security population system have changed greatly, it is necessary to verify the identity when replacing the ID card, and the relevant hospital needs to issue relevant certificates. 1. Medical records prove that if facial injury or even disfigurement, diseases and so on lead to facial changes. You need to issue a hospital case certificate when changing your ID card. 2. In case of cosmetic surgery, the plastic surgery hospital needs to issue a cosmetic certificate for identity verification when changing the ID card. You can get a plastic surgery certificate for free in the hospital. Come to our hospital to be double eyelid surgery's friend. And come back to us to issue relevant plastic surgery certificates. We will indicate on the plastic surgery certificate when the patient did what surgery, etc. Help friends who have undergone plastic surgery to verify their identity. Therefore, I also want to remind those friends who plan to have plastic surgery, it is best to keep the relevant certificates such as surgical certificate, hospital certificate or plastic surgery certificate to facilitate identity verification when re-applying for ID cards.