A common misconception about ants is that they're harmless. First, carpenter ants in your home can cause extensive damage as they burrow through wood, leaving a trail of sawdust behind them and compromising the structural integrity of your home. Second, some ants can bite or sting, causing pain, itching, and discomfort. While these bites very rarely lead to serious issues, rare complications like infection can occur. Finally, ants are a food source for other pests like bats and spiders, so an uncontrolled ant infestation can lead to a bat or spider infestation as well.