Do I need to re-sign the validity of the US visa 10?

The so-called ten-year validity period means that the validity period is ten years from the date of issuance of the visa. During this period of validity, you don't need a visa to travel to and from the United States. You can buy a plane ticket to board the plane. You can say that you will leave. Of course, in the process of use, we must act according to the requirements of each entry into the United States, otherwise trouble will come-