Should I continue to use my external hard drive after bad sectors have been repaired?

Yesterday, my external hard drive decided to have some problems. I saved all the data I could and then ran a check disk on the drive. It was able to repair the bad sectors and told me that the hard drive was good to go. I did lose three folders, but that is very minor compared to what was on there. I am wondering if I can continue to use the hard drive now that it is "repaired" especially since I plan to back up all my data using an online service from now on so that even if my external hard drive explodes I won't lose anything. I'm trying to avoid buying another external if I don't have to. It seems to be working fine now, but I am wary since I lost some data. Thanks.