What Age Is Autism Screening Recommended?

PostedNovember 7, 2025

UpdatedNovember 7, 2025

ByMy Patient Advice

Author: Lucia Alvarez, MSc | Reviewed by: Dr. Rebecca Fernandez, MBBS

The age for autism screening is a critical factor in identifying autism spectrum disorder (ASD) early, enabling prompt intervention. According to pediatric guidelines, it is recommended that children be screened for autism at 18 and 24 months, as this is when early signs are most likely to emerge. Early screening is vital, as early childhood is a crucial period for development, and catching autism symptoms early can lead to better long-term outcomes.

While formal autism screenings are typically recommended at these ages, it’s important to remember that developmental milestones may be noticed earlier or later. Parents and caregivers should be vigilant and discuss any concerns with a healthcare provider if they notice signs of autism before or after the recommended screening age.

Recommended Age for Autism Screening and Developmental Milestones

Here’s why the age for autism screening is typically set at 18 and 24 months:

Early Childhood Development:

At 18 months, children are expected to hit certain developmental milestones, such as speaking a few words, responding to their name, or showing social interest. Delays in these areas may raise concerns for autism.

Pediatric Guidelines:

According to the American Academy of Pediatrics (AAP), all children should receive autism screening at 18 and 24 months, regardless of whether developmental delays are apparent. This allows for the early detection of autism signs that might not be immediately obvious.

Variations in Timing:

If parents notice early signs of autism, such as limited social engagement, communication difficulties, or repetitive behaviours, screening can be requested sooner. Early intervention is key, so seeking a pediatric consultation is encouraged if concerns arise before the recommended screening age.

The age for autism screening is crucial for identifying potential concerns and getting early support for your child. For expert advice and personalised consultations, visit providers like Autism Detect to learn more about screening and early intervention options.

For a deeper dive into the science, diagnosis, and full treatment landscape, read our complete guide to Autism Screening and Assessment Tools.

Lucia Alvarez, MSc

Author

Lucia Alvarez is a clinical psychologist with a Master’s in Clinical Psychology and extensive experience providing evidence-based therapy and psychological assessment to children, adolescents, and adults. Skilled in CBT, DBT, and other therapeutic interventions, she has worked in hospital, community, and residential care settings. Her expertise includes grief counseling, anxiety management, and resilience-building, with a strong focus on creating safe, supportive environments to improve mental well-being.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the author's privacy.

Dr. Rebecca Fernandez, MBBS

Reviewer

Dr. Rebecca Fernandez is a UK-trained physician with an MBBS and experience in general surgery, cardiology, internal medicine, gynecology, intensive care, and emergency medicine. She has managed critically ill patients, stabilised acute trauma cases, and provided comprehensive inpatient and outpatient care. In psychiatry, Dr. Fernandez has worked with psychotic, mood, anxiety, and substance use disorders, applying evidence-based approaches such as CBT, ACT, and mindfulness-based therapies. Her skills span patient assessment, treatment planning, and the integration of digital health solutions to support mental well-being.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the reviewer's privacy.