What Is Autism Regression and When Does It Happen?Â
Autism regression refers to the loss of previously acquired skills in children with autism. This can include a decline in language abilities, social skills, or other developmental milestones that were previously progressing. The onset of autism regression is typically observed between the ages of 18 months and 3 years, although the timing can vary from child to child.
During autism regression, a child may lose the ability to communicate verbally or show a reduced interest in social interactions, both of which were previously developed. This developmental decline can be especially concerning parents as they may notice a significant shift in their child’s behaviour and abilities.
How Autism Regression Presents Itself
Ways autism regression commonly appears in children:
Loss of Skills:
Children who have been developing language skills may suddenly stop speaking or may use fewer words than they did before. Similarly, previously learned social behaviours, such as responding to their name or making eye contact, may decrease or disappear.
Social and Emotional Changes:
A child experiencing autism regression may withdraw from social interactions and show less interest in engaging with peers or caregivers.
Changes in Behaviour:
Children may exhibit new behaviours, such as increased irritability, repetitive actions, or sensory sensitivities.
Autism regression can be an early sign of autism onset and should be monitored closely. Early intervention is crucial for addressing developmental delays and helping the child regain lost skills. For expert advice and tailored consultations, visit providers like Autism Detec for one-on-one support specific to your child’s needs.
For a deeper dive into the science, diagnosis, and full treatment landscape, read our complete guide to Early Signs & Symptoms of Autism.

