Short tongue tie in babies will affect speech. When the attachment site of tongue tie is too low, the thick fibrous tissue can restrict the flexible movement of the tongue body, so that the tip of the tongue can not be extended out of the mouth, and can not make the tip of the tongue upward and other movements, which restricts the full development of the tongue, and makes the tongue body appear W-shaped. When the baby is establishing the habit of pronunciation, it cannot make clear curling and warbling sounds, etc., and there is ambiguity, which affects communication. The anterior teeth of the breast are affected by the short tongue tie when the gap is closed, and a large gap often appears, producing a sense of wind leakage when pronouncing. A short tongue tie also occurs when the incisal ends of the lower anterior teeth repeatedly rub against the mucosa, forming traumatic ulcers. The movement of the tongue body can not be fully mixed with the food, which can reduce the function of food digestion and absorption, and the tongue tie should be repaired in time.