If one of your employees has an accident and hurts his back, neck, knee or something that might be ok in 3 days but may reoccur later, it is a good idea to report these. Even if you don’t feel it will be a problem, it is better to just report it as “an incident that may lead to a claim later”.
If it is not reported and comes up a year later, the carrier does not look favorably on these situations.
BETTER TO BE SAFE THAN SORRY!!!