This article discusses how children with oncohematological diseases require medical treatment and how this process can affect various aspects of their development. In addition to the illness itself, two factors are highlighted as having the strongest impact on a child’s development: the neurotoxic effects of therapy and prolonged hospital-based treatment. Among the problems addressed in the article, potential delays in speech development occupy a special place, as they may negatively influence the child’s communicative abilities and overall development.

Treatment, neurotoxic effects, speech development

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