Children with simple language developmental delay are basically unaffected when they grow up, but if it is caused by central neuropathy, it may affect language comprehension and expression, reading and writing, and cognitive ability when they grow up. Language development is a key stage in children’s language learning. The age of 1 to 2 years belongs to the sensitive period of language, the age of 2 to 3 years is the explosive period of children’s language, and the age of three to six and a half years is an important stage for accumulating language vocabulary and grammar rules. If there is simply a delay in language development during this period, there is usually not much effect when they grow up. However, if the delay is caused by diseases such as central neuropathy, it may affect the child’s language comprehension and expression, reading and writing, and cognitive ability when he or she grows up, and in some cases, it may even have varying degrees of impact on various aspects such as intellect and motor skills. If your child is found to have delayed speech development, it is recommended that you consult a doctor in time to identify the cause of the problem and treat it actively.