The short tongue tie refers to the shortness of the longitudinal folds of the mucous membrane at the base of the tongue due to congenital underdevelopment, and the tie is attached to the ventral surface of the tongue near the tip of the tongue or directly to the tip of the tongue, which restricts the mobility of the tongue, and is also known as tongue-tie. Harms: 1, the tip of the tongue is concave, may have a fork, the appearance is not beautiful. 2, can not wrap the nipple or pacifier, leakage of milk, sucking weakness, eating inconvenience. 3.Limited tongue movement, the tongue can not stick out of the mouth or can not touch the palate. 4.Limited tongue movement, affecting chewing. 5.Ulcers of tongue tip and ligament are easy to appear. 6, Growing up with poor pronunciation, slurred speech, communication disorders, limited vocal development. 7.It is different from other children, and psychological disorders appear after growing up. Treatment: Immediate detection of immediate surgery. It is recommended that surgery be performed in the neonatal period. Neonatal surgery generally does not require anesthesia, and the tethered ligament can be cut horizontally without suturing, which is simple and convenient. Surgery in the non-neonatal period requires anesthesia and may also require sutures, especially after articulation has been perfected, because the deformity has already formed and the improvement of articulation function is limited and slow.