The language development of infants and toddlers has a certain pattern, generally 5-6 months after birth, their eyes will stare at a certain place, and the first sound they make is crying, 6-9 months of age, they will pronounce “babbling”, 9-12 months of age, they can say simple words such as “mom”, 1-1.5 years of age, they can say complex words such as “eat”, 1.5-2 years of age, some of their pronunciation is not standardized, but they can make simple sentences. At the age of 9-12 months, children can say simple words such as “mommy”, at the age of 1-1.5 years, children can say complex words such as “eat”, and at the age of 1.5-2 years, some of their pronunciation is not standardized, but they can make simple sentences. Although there are individual differences in language development, if your baby is still unable to speak after the age of 2, or does not have any communicative language, it is recommended that you consult a doctor in time for examination and active intervention. First, the influence of language development delay factors Language development delay refers to a variety of reasons caused by the child’s ability to express themselves verbally or language comprehension, significantly behind the development level of normal children of the same age and gender. It is related to a variety of factors, the main influencing factors are as follows: 1, education: too much indulgence, such as the baby wants to eat an apple, with a finger of the hand parents immediately take over; 2, language environment: mixed communication or no communication; 3, congenital diseases: hearing impairment, sound-constituent organ disease; 4, psychological anomalies: autism, selective mutism and so on. Second, the performance of delayed language development, general developmental delayed children will appear certain abnormal performance, mainly divided into speech and action, specific performance is as follows: 1, speech performance: arrive at the age of speech is still unable to express, or language application skills are lower than children of the same age; 2, action performance: often accompanied by open mouth, tongue, salivation, teeth grinding, double eyes, and often appear unconscious expression or action. The examination of language development delay can not only be recognized according to the above symptoms, but also can be clearly diagnosed through the following examinations: 1, hearing examination: you can go to the ear, nose and throat department for hearing related examination, to make clear whether there is a hearing disorder and other illnesses; 2, brain examination: including cranial CT or MRI, electroencephalogram, brainstem electro-audiometry and other examinations, to make clear whether there is organic brain lesions, which affect hearing or language center, resulting in language development delay. speech center, resulting in delayed speech development. Treatment of language delay Language delay not only affects the cognitive development of children, but also affects the development of children’s emotions, personality and interpersonal relationships, and even leads to psychological abnormalities, so it needs to be actively treated, and its treatment methods are as follows: 1, general treatment: train the children’s understanding of language, auditory memory and auditory perceptual ability, and encourage the children to imitate positively; 2, causal treatment: for those with psychological and behavioral disorders, it is necessary to treat the children’s cognitive and emotional development. For those with psychological behavioral disorders, behavioral therapy should be used to correct them, accompanied by supportive psychotherapy. For those with attention disorders, central stimulants can be given to improve attention.