A large tongue is medically known as a short tongue tie. It is a clinical condition in which the tongue tie 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 be upturned, which is a congenital developmental abnormality. To determine whether it is a large tongue, it can be clarified by tongue movement and pronunciation. 1. Judgment based on tongue movement: normal tongue tethering can make the tongue move freely, the tip of the tongue can naturally stick out of the mouth or lick upward to the palate, the tongue body can move flexibly to the left, right, up and down, and the tongue can be stretched and rolled freely; if the tip of the tongue cannot reach the lips of the mouth, or there is a gap at the tip of the tongue when it is stretched out, it is “W” shaped. Preliminary judgment of large tongue. 2, according to the speech pronunciation judgment: normal people spit out words clearly, pronunciation standard, no communication barriers; patients with big tongue clinically mainly in part of the vowel and rhyme pronunciation difficulties, resulting in speech pronunciation, bite, spit words unclear, there is a clear sense of strain. If the diagnosis of large tongue is clear, surgical treatment can be performed by cutting the abnormal tongue tie with scissors, electric knife or laser under simple local anesthesia without sutures; for patients who cannot cooperate with the surgery or need to close the wound, general anesthesia can be used and attention can be paid to daily postoperative care.