However, if the item in question is due to "time of use", there will be no immediate impact.
If it is related to a bad sector, it is recommended to back it up, considering the possibility that it will soon reach the end of its useful life.
Consider even one bad sector as a sign of breakdown.
(If the number does not usually increase, it is possible that the bad sector was created by an impact or other cause and the damage will not spread, but this is not a good thing.)