Mixed Receptive-Expressive Language Disorder is a language disability causing problems in both understanding and expressing language. The condition was formerly called developmental receptive language disorder. Today it is generally understood that receptive language deficits do not occur all by themselves but appear together with problems expressing language as well.

Three to five percent of all children have both receptive and expressive language disorder. The cause of this disorder is unknown, but problems with receptive skills begins before the age of four. Difficulty understanding and using language can cause problems with social interaction and make it difficult to function independently as an adult.

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