Identifying the common signs of autism in young toddlers involves monitoring developmental milestones and looking for specific red flags in communication, social interaction, and behavior. According to CDC guidelines and expert insights from Heart Core ABA, key indicators often appear between 12 and 24 months.

Communication and Social Red Flags:

• No babbling or gesturing (pointing or waving) by 12 to 16 months.
• Limited or no eye contact during interactions.
• Failure to respond to their name by 12 months.
• Not sharing social smiles or reacting to a parent’s smile.
• No single words by 16 months or spontaneous two-word phrases by 24 months.
• Lack of joint attention, such as not pointing to share interest in a toy or following a caregiver’s gaze.

Behavioral and Sensory Indicators:

• Repetitive movements like hand-flapping, rocking, or toe-walking.
• Intense focus on lining up toys or spinning objects rather than imaginative play.
• Lack of interest in pretend play or playing with peers by age two.
• Echolalia, which is the repetition of words or phrases instead of using original language.
• Unusual or extreme reactions to sensory inputs like sounds, smells, or textures.

Parents are encouraged to use these observations to consult with professionals for early intervention, which can help build communication, confidence, and independence.