Young children are especially susceptible to exposure to trauma. Rates of abuse and neglect among this population are staggering. This article presents a review of relevant literature, including research findings specific to early childhood vulnerability to trauma, symptoms associated with traumatic events, diagnostic validity of early childhood trauma, and treatments for young children. In the past, misconceptions about the mental health of young children have hindered accurate diagnosis and treatment of trauma-related mental illness. Due to the prevalence of trauma exposure in early childhood, counselors are encouraged to become familiar with ways that clients and families are impacted and methods for treatment. Implications for future research also are presented.