Can children “outgrow” autism? In short: some do, but it’s complicated. While the term “outgrow” suggests a clean break, the reality is more nuanced. According to a study in JAMA Pediatrics, about 37 % of toddlers diagnosed with autism between 12–36 months no longer met diagnostic criteria by age 5. 

That’s heartening—but not necessarily the end of the journey.

What Does “Outgrowing” Autism Mean?

Rather than shedding autism like outgrown clothes, many kids develop “optimal outcomes”. Dr. Elizabeth Harstad from Harvard Medical School explains :

“Some children diagnosed with ASD in their youth may have significantly reduced symptoms as they age, and show little difference to people who have never had the diagnosis.”

Often, children who “outgrow” the label start with stronger adaptive skills or are girls—those early strengths give them a boost. Still, many continue to face subtle challenges like anxiety, attention issues, or shy social traits—even if the official autism diagnosis isn’t there anymore.

Why This Isn’t the End—It’s a New Beginning

Early intervention plays a vital role, though it’s not the whole story. Home environments, school support, and each child’s resilience shape long-term outcomes.

 The American Psychological Association points out that while only a small minority lose the diagnosis, for them it can mean dramatic progress—but they may “mask” autistic traits rather than fully lose them.

In essence, there’s no one-size-fits-all. For some families, the “outgrowth” is a journey toward independence and confidence. For others, it’s about building skills and supports—not erasing a lifelong identity.

If you're navigating this journey in Georgia, Tennessee, Virginia, or North Carolina, know you're not alone.

Blossom  ABA  Therapy offers compassionate, evidence-based ABA services tailored to every child's unique path. Whether aiming for a meaningful reduction in symptoms or building essential life skills, Blossom ABA is here to help your child—and family—blossom