The fortune teller said that he would change his name, but does the hukou book need to be changed?

If you want to change your name, the changed name can't be used where you need identity information, that is, it's not formal. People will still call you by your real name when they see your ID card. If you want to change the household registration book, you need to go to the local public security bureau to handle the handling fee. Pay by the word. If you have any questions, you can ask me. Thank you.