1. Dental problems
If the child has oral problems, such as gingivitis and tooth decay. It will affect the movement of oral muscles and cause children to speak unclear.
2. Ear problems
If the child suffers from ear diseases, such as otitis and deafness, it will affect his hearing sensitivity, resulting in inaccurate speech or insufficient speech volume.
3. Psychological reasons
Children need to practice their pronunciation in the process of learning a language. If children are introverted or have psychological problems, they will be unwilling to communicate with others, which will affect their oral expression ability.
4. Nervous system and physical health problems
Children's inability to speak fluently may also be related to the nervous system and physical health, such as cerebral palsy, muscle weakness, cleft lip and other diseases.
It should be noted that if the child has speech development disorder, he needs to pay attention to it in time and seek medical examination. Doctors will formulate corresponding treatment plans and rehabilitation plans according to the specific situation of children.