The search results provided information about Reactive Attachment Disorder (RAD), a rare and serious condition in which an infant or young child doesn't establish healthy attachments with parents or caregivers. RAD is characterized by markedly disturbed and developmentally inappropriate ways of relating socially to others. It is one of the least researched and most poorly understood disorders in the DSM, and there is little systematic epidemiologic information on RAD. The disorder can affect children, and in some cases, these issues persist into adulthood. RAD is often associated with physical or emotional neglect or abuse, and it can lead to complications in childhood and adolescence if left untreated. The exact causes of RAD are not well understood, but genetic influences are cited as playing a significant role in the development of attachment disorders