What is the cancellation of American visa?

It is possible that the American visa was passed and cancelled. If you haven't been to the United States, it is estimated that the embassy found something wrong with your information, thus doubting your real purpose of going to the United States.

But if you have been to the United States and your visa has been cancelled, it is estimated that you have stayed there for too long, or you have violated other people's laws there.

But don't worry, you can sign it again after cancellation. The next time you sign, you must show the visa officer the real purpose of your going there, and then prove to the visa officer that you will definitely come back after you go.