Disinhibited social engagement transtorno is characterised by grossly abnormal social behaviour, occurring in the context of a history of grossly inadequate child care (e.g., grave neglect, institutional deprivation). The child approaches adults indiscriminately, lacks reticence to approach, will go away com unfamiliar adults, and exhibits overly familiar behaviour towards strangers. Disinhibited social engagement transtorno can only be diagnosed in children, and features of the transtorno develop within the first 5 years of life. However, the transtorno cannot be diagnosed before the age of 1 year (or a developmental age of less than 9 months), when the capacity for selective attachments may not be fully developed, or in the context of Transtorno do espectro autista.