What are developmental disorders characterized by?

Developmental disorders are primarily characterized by learning impairments and behavioral problems that manifest during childhood. These disorders can affect various aspects of development, including social skills, communication, and daily functioning. Children with developmental disorders may experience difficulties in acquiring skills that are typically learned at certain developmental stages, which can lead to challenges in academic performance and social interactions.

While cognitive abnormalities can be associated with some developmental disorders, they are not the defining characteristic of all such disorders. The absence of a normal body opening pertains more to specific congenital conditions rather than developmental disorders broadly. Additionally, medical treatment of old age refers to geriatric care, which is unrelated to developmental disorders typically diagnosed in children. Therefore, the correct answer highlights the key aspects of developmental disorders, focusing on their impact on learning and behavior during formative years.