Using a checklist to monitor autism milestones by age is a practical and powerful way to track your child’s growth. You can utilize resources like the CDC Milestone Tracker app or printed checklists from your pediatrician to observe your child during their daily routines.

To effectively use a checklist for your toddler, follow these steps:

• Observe and Record: Watch your child during normal play and daily routines for one week. Note the skills they demonstrate consistently without assistance.
• Identify Gaps: Circle any “not yet” items on the checklist to highlight areas where development may be lagging.
• Document with Video: If you notice specific concerns, take short videos of your child. These provide clinicians with real-world examples of your child’s behavior and development.
• Key Milestones to Track:

1. 9 Months: Look for social smiles, babbling, and back-and-forth gestures like reaching.
2. 12 Months: Ensure the child responds to their name, waves “bye-bye,” and uses single words like “mama” or “dada.”
3. 18 Months: Check for the use of 5–20 words, pointing to show interest, and the start of simple pretend play.
4. 24 Months: Monitor for two-word phrases, the ability to follow simple directions, and interest in peer play.

If you notice several developmental red flags, such as a loss of previously acquired language or a consistent lack of eye contact, take the completed checklist to your pediatrician to discuss a formal screening or referral for professional evaluation.

• Autism Milestones by Age: Complete Developmental Guide