As said, if you have an identity field on the column which you have mentioned and if there was some data that was inserted in a transaction and rolled back after that, the identity field is still set to that value.
meaning, if I have an auto incrementing field and a transaction with 10 records, my auto increment field is now at 10 and starts for 11. I rollback the transaction, but the auto incrementing number doesn't go back to 1, but it will still start at 11.
Unless and until there is something behind the screen other than straight forward inserts, this should cause no issues to you, as said.