The answer to 'are fire ant dangerous' is yes, fire ants can be dangerous. Fire ants are aggressive and will sting humans who disturb their nests, often multiple times. Their stings can cause painful, itchy welts and in some cases, severe allergic reactions that require medical attention.
Fire ants build large mounds in the ground, often in lawns, gardens, and other areas where people and pets frequent. When the nest is disturbed, the ants will swarm out and attack, biting and stinging repeatedly. This can be a serious problem, especially for young children, the elderly, and those with fire ant allergies.