When can autism spectrum disorders be detected?
ASDs can often be detected as early as 18 months. While all children should be watched to make sure they are reaching developmental milestones on time, children in high-risk groups—such as children who have a parent or brother or sister with an ASD—should be watched extra closely. A child with any of the warning signs of ASDs should be checked by a health care professional. Research shows that early intervention can greatly improve a child’s development.[1],[2] CDC is working with national partners on a public awareness campaign to educate parents about how important it is to track their child’s development in the first few years of life. The campaign, “Learn the Signs. Act Early,” teaches parents, health care professionals, and child care providers about early childhood development, including early warning signs of autism and other developmental disabilities.
