You’ve probably known about cavities since you were a very small child, and at this point in your life, you may have already had a few. Despite what your parents might have told you, knowing whether or not you have a cavity is much harder than most people think. It’s never as obvious as those posters you likely remember from the dentist’s office!

However, if you’re worried about a tooth, there are a few telltale signs to look out for. If you notice any of the following, then planning a trip to the dentist would be wise.