Nowadays, it is common for children to have a short tongue tie, however, because parents do not know how to judge it, they often miss the best time to correct it, resulting in problems with the child’s pronunciation and speech, which also has a certain impact on the child’s health. So what is a short tongue tie? How to determine it correctly? First of all, short tongue ligament (commonly known as tabbed tongue, big tongue) means that the tongue ligament does not retract under the root of the tongue after birth, resulting in the tongue not being able to stick out of the mouth and the tip of the tongue not being able to be upturned. A normal tongue tie allows the tongue to move freely and the tip of the tongue to stick out of the mouth naturally or lick upward to the upper gums. However, a small number of children have abnormal tongue tie development and may have a short tongue tie. Some parents find that the infant’s tongue tether is relatively short, the tip of the tongue can not be upturned when opening the mouth, the tongue is not flexible, it is considered abnormal. In fact, the infant’s tongue tie is in the developmental stage. In the neonatal period, the tongue tie is extended to the tip of the tongue or close to the tip of the tongue. During the development of the tongue, the tongue ligament gradually recedes toward the tongue root, and the tongue ligament can recede to its normal position at the age of 2 years in normal children. Therefore, in infancy, the lingual ligament becomes more tense and the lingual ligament can appear “too short”, which is a temporary physiological phenomenon and should not be considered abnormal. With the growth of age and the eruption of milk teeth, the attachment of the tongue tie will gradually move under the mouth, gradually become thin and loose, the mobility of the tongue will also become more flexible, the tongue tie will not be short. After infancy, parents should pay attention to whether the above phenomena appear on the child’s tongue, and if they do, parents should pay attention to it. The most common treatment methods are ligature dissection under local anesthesia and ligature revision under general anesthesia. However, parents should know that the child’s pronunciation is not corrected after surgery, but requires later conscious tongue lift function training, and in some cases, special voice training to correct gradually. It is best to eat a liquid diet for the first few days after surgery, avoiding overheated foods and stimulating foods to avoid infection.