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Autism Regression: Early Signs, Possible Causes, and How Families Can Find Support

Autism regression refers to the loss of skills a child has already developed. It may involve spoken language, social interaction, eye contact, play, or other communication skills.

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Mr. Yoda

15 Aug 20264 Min Read
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Autism Regression: Signs, Causes & How to Get Support

Autism regression refers to the loss of skills a child has already developed. It may involve spoken language, social interaction, eye contact, play, or other communication skills. 

Many systematic reviews find that regression occurs in about one-third of autistic children, with language and social skills among the most often affected areas.[1] Loss of speech in toddlers, a toddler losing words, or reduced social interaction can be signs that need clinical attention.

What Are the Signs of Autism Regression?

Common autism regression signs include losing previously used words, reduced response to name, less eye contact, reduced social interaction, and changes in play or communication.[1,2] Regression often occurs during the second year of life, although the age can vary. 

Parents can use UNICEF's early childhood development resources to learn more about developmental milestones and ways to support young children. If a child loses language or social skills, professional assessment is important.

NICE recommends referral for autism assessment when a child younger than 3 years has regression in language or social skills.[3]

What Causes Autism Regression?

The causes of regressive autism are not fully understood. Research suggests that autism might involve genetic, metabolic, and biological factors, but no single cause cannot explain regression.[1,4] 

Families may search for autism regression after vaccines because regression can occur around the same developmental period when routine childhood vaccines are given. However, the World Health Organization's vaccine safety guidance states that extensive research has found no causal link between vaccines and autism.[5]

How Can Families Find Support?

If my child is regressing, what do I do? Start by speaking with a pediatrician or developmental specialist. Assessment can identify changes in communication and development and determine whether further medical evaluation is needed.[3,4]

Early intervention can support communication, social interaction, daily skills, and other developmental needs. The CDC also noted that early identification and intervention can help children and families access appropriate support.[2]

Regression does not mean that progress cannot occur. Each child's development is different, and support should be based on individual needs.

Talk to Our Autism Care Team, if you notice a loss of previously acquired language, social, or developmental skills. Early evaluation can help your family understand the next steps.

Frequently Asked Questions

What is autism regression?

Autism regression is the loss of previously acquired developmental skills, often involving language or social communication.[1]

When does regression happen?

Regression often occurs during the second year of life, although the timing varies between children.[1]

What causes regressive autism?

The exact cause is not well-known. Autism might involve genetic, metabolic and biological factors, but no single trigger explains regression.[1,4]

How can I help a child with autism regression?

Arrange a developmental assessment. Depending on the child's needs, support may include speech and language therapy, developmental interventions, and other individualized services.[3,4]

Is autism regression permanent?

Not always. Some children regain previously lost skills, while others continue to need developmental support. Outcomes vary between children.[1]

Can regression reverse in autism?

Some children regain some or many previously lost skills. Progress varies and should be monitored with appropriate professional support.[1]

How does autism affect families?

Autism can affect communication, routines, education, and caregiving responsibilities. Access to information, coordinated care, and family support can help families manage these needs.[4]

References