Children’s articulation is variable, and even phonetic anomalies are sometimes unstable. For example, the child pronounces “short” very well but “brother” indistinctly, which means that the types of errors are affected by different combinations of sounds or different word structures, and may be different. Generally speaking, distortions are more frequent, meaning that the child may always pronounce the sound in the same way, while omissions and substitutions lack consistency. So, how is dysarthria caused? The following are some of the causes of dysarthria: 1. Organ of Articulation Factors: This refers to the fact that dysarthria is caused by recognizable defects in the organ of articulation, such as cleft lip and palate, tongue tie that is too short, a tongue that is too large, an inappropriate bite, hearing impairment, and musculo-neurological coordination disorders, etc. These can all cause dysarthria. However, there is not an absolutely proportional relationship between defects in the organs of articulation and abnormalities in articulation. In fact, as long as the method of articulation can be adjusted appropriately, the voice may still be normal; on the contrary, when the organs of articulation are completely normal but the method of articulation is incorrect, it will result in abnormalities in articulation. 2. Intelligent factors: Infancy to pre-school age is the most important period of language development, but also the key period for the development of the ability to formulate sounds, if the intelligence is insufficient to learn the lack of ability, it is easy to affect the development of the ability to formulate sounds. Personality characteristics and emotional factors: Generally speaking, people with slow personalities speak slowly, and people with impatient personalities speak quickly, so speaking quickly naturally makes it easy for abnormalities in pronunciation to occur. In addition, due to the overprotection of parents, hindering the development of the child’s emotional maturity, which will make the child retain a longer period of childish speech. 4, bad learning objects: children’s parents, siblings or other playmates have serious dysarthria, the child and the child and his long time to get into the habit, resulting in dysarthria. 5. Environmental factors: From infancy, children can gradually learn speech sounds by listening to their mothers repeating words over and over again, and some children are entrusted to other people from an early age. If the person who takes care of the child just lets the child lie there sleeping and pays little attention to it, the child will have fewer opportunities to receive language stimulation. In addition, if the parents allow the child to express his needs by gestures, and if the parents are able to recognize the child’s wishes and needs and satisfy them, language becomes less important to the child, and naturally there is no willingness to express himself or herself orally, and the opportunity to speak is reduced, and the ability to form sounds is naturally impaired.