Developmental dysphasia is a developmental language disorder, reduced ability or difficulty in understanding, communication and difficulty in speech production, with difficulty in articulating a large number of sounds, use of grammatical forms (agrammatism), and the child has difficulty in expressing his/her thoughts.

The problem is not only in the articulation, but difficulties in phonological, morphological, syntactic and lexical-pragmatic levels. Around the age of three, the child does not pronounce most of the sounds correctly. Speech is unintelligible to the environment. The children have difficulty adopting the future tense, abstract concepts, do not distinguish gender, have difficulty adopting the plural, and often speak in the third person.

If their environment speaks at a faster pace, children with dysphasia cannot follow them and acquire the language. That is why such children should be spoken to at a slower pace.

Difficulties in sentence structure: the sentence is simple, if they use more complex sentences, they are agrammatic. Vocabulary is scarce and it develops more slowly.

Developmental language disorders are either expressive speech disorders or receptive speech disorders.

In developmental dysphasia of the expressive type, the child's expressive speech is below what is expected for the age, but understanding is within normal limits.

Developmental receptive dysphasia is a specific developmental disorder in which the child's understanding of speech is below what is expected for the child's age. The disorder is observed when the child does not respond to the name when he/she turns one year old, cannot name some simple objects, or if he/she does not perform some simple tasks by the age of two, hyperactivity may also be present.

The most important thing is to spot the problem in time and to apply speech therapy treatment, which will help the child to acquire and develop the native language and to integrate in a group with his peers and with adults, so that the language has a communicative value.