DefinitionDevelopmental expressive language disorder is a condition in which a child has lower than normal ability in vocabulary, producing complex sentences, and remembering words. However, children with this disorder may have the normal language skills needed to understand verbal or written communication.Alternative NamesLanguage disorder - expressiveCauses, incidence, and risk factorsApproximately 3 - 10% of all school-age children have expressive language disorder. It is a pretty common issue in children.The causes of this disorder are not well understood. Damage to the cerebrum of the brain and malnutrition may cause some cases. Genetic factors may also be involved.SymptomsBelow-average vocabulary skillsImproper use of tenses (past, present, future)Problems making complex sentencesPro