The tongue ligament, commonly known as the lingual tendon, is a thin strip of tissue between the tongue and the floor of the mouth when the tongue is opened and lifted. A normal tongue tie allows the tongue to move freely, with the tip of the tongue sticking out of the mouth naturally, or licking upward to the upper gums. A short tongue ligament means that the tongue ligament does not retract under the tongue root 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 lick upwards, which may be the result of congenital dysplasia or local chronic irritation, infection or scar formation after trauma. The common hazards that can be caused by a short tongue tie are as follows: 1, affect the spitting and pronunciation: especially for the curl of the tongue, palatal and tongue sounds; 2, is not conducive to normal chewing: manifested by eating will chew very slowly, swallowing more; 3, easy to induce ulcers: in infancy when sucking milk, due to the short tongue tie, will often be subject to the two lower incisors of the friction of ulcers. How to determine the baby’s tongue tether is too short If you find that your baby can’t wrap the nipple and leak milk when feeding, or your tongue can’t freely extend forward, the tip of the tongue is “W” shaped when it is barely extended forward, and there is a rolled tongue sound and tongue palate sound dysphonia, you need to consider the possibility of your baby’s tongue tether being too short, and you should consult a doctor for clarification in time. Once the baby is found to have short tongue ligament, it needs to be treated actively. The treatment is as follows: 1.Surgical treatment: after birth or 8 months-3 years of age, surgical treatment is appropriate, including lingual ligament cutting, lingual ligament correction, etc.; 2.Other treatment: post-operative planning language training and tongue tilting palate movement can be implemented.