More about ants
Although they can nearly all bite or sting, few cause significant local and/or systemic reaction in humans. Most ants are too small to effectively bite humans, and their sting is mild. However, the sting from harvester ants and fire ants can cause unpleasant symptoms and may lead to allergic reactions.
Do common house ants bite?
So, the answer to the question “Do small ants bite?” is a definitive, yes. The most important thing to understand is that all ants have the potential to bite. All species of ants have mandibles, meaning they have the ability to inflict painful or aggravating bites.
Is it bad if an ant bites you?
These ants rarely bite humans, and their bites aren't harmful. You may feel a burning sensation after a bite, but it should go away after a short time.