Parents often ask their children to see if they have a short tongue tie or if they need to have their tongue tied because they are late in speaking or can’t speak, and there is a popular belief in the countryside that they can’t speak, have a slurred speech and have a short tongue tie. But unfortunately, the majority of these children have language development disorders, including autism, mental retardation, etc. Only a very small percentage of children with a lisp are associated with a short tongue tie. Some parents of children with a lisp choose to cut the tongue tie, but later find that the cut does not get better. The lingual ligament is a thin strip of tissue between the tongue and the floor of the mouth when the child opens his or her tongue, and it is a mucosal ligament formed by the mucosa of the sublingual region in the midline connecting the sublingual to the alveolus. Normally in newborns, the lingual tether extends to the tip of the tongue or close to it. During the development of the tongue, the ligament gradually retracts toward the tongue root, so infants are not born with their tongues freely extended, but start from short to just being able to suck, and then begin to pronounce words due to the need to drink milk, speech, etc. After a long series of related activities and exercises for several years, this makes the tip of the child’s tongue gradually move away from the ligament and thus towards normal. Short tongue tether is mainly manifested by the short tongue tether at the bottom center of the tongue, which restricts the normal activities of the tongue and prevents the tongue from extending outside the mouth or touching the upper lip; when the tongue is stretched forward, the short tongue tether pulls the tongue, causing a small depression at the back of the tongue and a “V” or “W” shape at the tip of the tongue. In severe cases, it hinders the clarity of speech, especially for the curly tongue, palatal and lingual sounds, such as the difficulty in pronouncing /l/, /r/ and /ch/ in the Hanyu Pinyin alphabet. Before the age of 3, children’s vocabulary gradually increases and they are eager to use language to express their thinking, often with inaccurate pronunciation, especially some more complex sounds. This is because they have just learned to speak, and the language center and vocal organs of the brain are not yet mature, or they are influenced by the language environment during the process of learning to speak. The difficulty of various pronunciations varies, and there are early and late mastery times. Some sounds (such as p, b, m) can be learned before 2-3 weeks old, while others (such as l, s, z, etc.) can be learned as late as 8 weeks old. The main organic causes of dysphonia are congenital cleft lip and palate, missing or malformed teeth, neurological disorders that cause uncoordinated vocal movements, hearing impairment that prevents correct imitation of sounds, and brain development disorders. If the tongue tie is too short, it usually only affects the child’s inaccurate pronunciation of certain words, but does not play a major role in the whole pronunciation. If a child can pronounce one or more of the apical t, d, n, or l sounds, it can be concluded that the lisp is not the fault of the lingual ligament. As long as organic problems are ruled out, there is no need to worry too much about a child who cannot pronounce some of the later acquired sounds at the age of 4-5 weeks, and there is no need to cut the tongue tie. The key is to find a professional speech-language trainer and correct it through behavioral training. In infancy, the lingual ligament is often tense and can appear “too short”, which is a temporary phenomenon. With age and the eruption of the milk teeth, the attachment of the lingual ligament will gradually move down to the bottom of the mouth, gradually becoming thin and loose, and the mobility of the tongue will become more flexible, and the lingual ligament will not be short anymore. Therefore, even if the lingual ligament is short, it is not advisable to do the surgery too early. For short tongue ties, the current recommended time for surgery is after 4 years of age and around 5 years of age, and children before 4 years of age or younger can be observed and followed up.