Tongue-tie (ankyloglossia) is a condition present at birth that restricts the tongue's range of motion.
With tongue-tie, an unusually short, thick or tight band of tissue (lingual frenulum) tethers the bottom of the tongue's tip to the floor of the mouth. Depending on how much the tissue restricts tongue movement, it may interfere with breastfeeding. Someone who has tongue-tie might have difficulty sticking out the tongue. Tongue-tie can also affect eating or speaking.
Sometimes tongue-tie may not cause problems. Some cases may require a simple surgical procedure in the office!