Early Signs of Autism in Toddlers: What to Look For and What to Do Next

Understanding Autism in Early Childhood

Every child develops at their own unique pace, and there is a wide range of what is considered typical. But for some toddlers, differences in social engagement, communication, and behavior may signal the early signs of autism spectrum disorder (ASD). Recognizing these signs early allows families to seek support sooner, which can make a meaningful difference in a child's developmental path.

With the right resources - including early intervention services, therapies, and a strong family support network - many children with autism thrive. This guide will help you understand the early signs to watch for between 12 and 24 months, what to do if you notice them, and how a free service like ours can help you connect with qualified, vetted providers.

🔗 Related reading: Transition to Adult Autism Services in NY: A Guide · Nearby ABA Therapy

Key Developmental Milestones in Toddlerhood

Autism is not a single condition but a spectrum, meaning every child shows different strengths and challenges. By 12 months, most toddlers begin to babble, point, wave, and respond to their name. By 18 months, they may say a few words, imitate actions, and show interest in playing with others. By 24 months, they typically use simple two-word phrases and engage in pretend play. Delays or differences in these areas do not automatically mean autism, but they can be early flags.

What to Expect at 12-18 Months

• Social smiling by 2 months, but by 12 months, a lack of response to others' smiles or facial expressions can be notable.
• Eye contact may be limited, inconsistent, or avoidant.
• Responding to name: by 12 months, most toddlers turn their head when you call their name. A consistent lack of response is a common early sign.

What to Expect at 18-24 Months

• Language milestones: by 18 months, using at least 6 words; by 24 months, using at least 50 words and beginning two-word phrases. A delay here is a red flag.
• Joint attention: pointing to things of interest or looking when you point is an early social skill. A lack of pointing or following your gaze is a common sign.
• Imitation: copying sounds, gestures, or actions, like waving bye-bye or clapping, may be absent or delayed.

Comprehensive List of Early Signs of Autism in Toddlers

Early signs vary from child to child, but they generally fall into three main categories: social communication, repetitive behaviors, and sensory processing differences.

Social Communication Differences

• Limited or no eye contact during interactions
• Does not respond to name by 12 months (or inconsistently)
• Does not show social smiling or reciprocal facial expressions
• Delayed or absent babbling by 12 months
• No single words by 16 months
• No two-word phrases by 24 months
• Loss of previously acquired language or social skills (regression)
• Does not point to request or show interest by 14 months
• Does not initiate or respond to simple social games like peek-a-boo

Repetitive Behaviors and Restricted Interests

• Repetitive movements like hand-flapping, rocking, spinning, or toe-walking
• Insistence on sameness - distress over small changes in routine or environment (e.g., tantrums when the usual route to the store changes)
• Intense, narrow interests - fixating on a specific toy, part of a toy, or topic (like trains or fans) for long periods
• Unusual play - lining up toys in a row, spinning objects, repetitively flipping switches, or staring at moving parts
• Sensory sensitivities - over- or under-reacting to sounds, textures, lights, or tastes (e.g., gagging at certain foods, covering ears at normal sounds, or being indifferent to pain)

Other Early Signs

• Unusual posture or motor movements - such as walking on tiptoes, odd hand postures, or difficulty with balance
• Lack of pretend play - not feeding a doll, pretending to cook, etc.
• Minimal response to others' emotions - does not seem to notice when a parent is upset
• Unusual tone of voice - may sound robotic, flat, or have an unusual pitch

🔗 Related reading: Verify ABA Provider Credentials in NY: A Guide · Nearby ABA Therapy

What to Do If You Notice These Signs

Seeing these signs in your toddler can feel overwhelming, but you do not have to navigate it alone. Early action is key. Here is a step-by-step guide.

1. Track Your Observations

Keep a simple journal noting what you see - when it started, how often it occurs, and any context. For example, "Does not respond to name during play but does when watching a favorite video." This information is helpful for your pediatrician.

2. Talk to Your Pediatrician

At your child's next well-child visit, share your concerns. You can request an autism-specific screening tool, such as the M-CHAT (Modified Checklist for Autism in Toddlers), which is validated for children 16 to 30 months. If the screen is positive, ask for a referral for a comprehensive evaluation.

3. Contact Early Intervention Services

Every state in the U.S. offers a free or low-cost early intervention program (often called Part C of IDEA) for children under 3. A team of professionals can evaluate your child's development and provide therapies like speech, occupational, or behavioral support at no cost to your family. Search for your state's program online or ask your pediatrician for the contact number.

4. Consider an Autism Diagnostic Evaluation

A formal diagnosis is not required to start early intervention, but it can open doors to specific therapies and insurance coverage. A developmental pediatrician, child psychologist, or neurologist can conduct this evaluation.

ABA Therapy: A Leading Early Intervention

Applied Behavior Analysis (ABA) therapy is one of the most researched and recommended interventions for children with autism. It focuses on teaching skills - like communication, social interaction, and daily living - while reducing challenging behaviors through positive reinforcement. The therapy is led by a Board Certified Behavior Analyst (BCBA), who creates a personalized plan based on your child's strengths and needs.

ABA therapy is often covered by private insurance plans and state Medicaid programs under the autism benefit. However, navigating insurance and finding a qualified provider can be daunting. That is where a free matching service like Autism Services Near Me can help.

How the Free Matching Service Works

Our service is designed to be simple and supportive. You fill out a brief form about your child's age, location, and insurance. We then match you with vetted, BCBA-led ABA therapy providers in your area who have availability. You can review the options and choose what fits best. There is no cost to you - it is a free resource funded by our provider partners. We also verify that providers accept your insurance, including Medicaid, so you can focus on your child's care rather than paperwork.

Costs, Insurance Coverage, and State Resources

Costs: ABA therapy can range from $120 to $150 per hour, but most families pay nothing out-of-pocket with the right coverage. Many therapy centers offer free initial consultations to discuss your child's needs and verify benefits.

Insurance: Under the Affordable Care Act, many plans must cover autism-related services, including ABA. Most states also mandate it for private plans. Medicaid typically covers ABA for children diagnosed with autism.

State Early Intervention: As mentioned, these programs are free or low-cost and can include developmental therapies, but they may not offer intensive ABA. For that, a private provider or Medicaid waiver may be needed.

Financial Assistance: Some nonprofit organizations offer grants or scholarships for therapy. Your state's Department of Developmental Services may also have resources.

To get started, our free service can connect you with providers who accept your insurance, including Medicaid. Simply visit our website and fill out the quick form.

Common Mistakes to Avoid as a Parent

• Waiting: "They will outgrow it" is rarely true. Early intervention yields better outcomes, so act on your gut feelings.
• Self-diagnosing: While it is helpful to read about signs, leave the diagnosis to trained professionals.
• Ignoring insurance options: Many families assume therapy is unaffordable, but insurance coverage may surprise you. Check your benefits or let our service help.
• Comparing your child to others: Each child develops differently, but if your child is not meeting milestones, it is worth exploring.
• Jumping into any therapy without research: Look for evidence-based, BCBA-led ABA therapy. Our matching service ensures you connect with vetted providers.

Practical Tips for Daily Life

While you wait for evaluations or therapy, you can support your toddler at home:

• Use simple, clear language: Say what you mean and pair words with gestures or pictures.
• Follow their lead: If your child is focused on a toy, join in their play to build connection.
• Create predictable routines: Visual schedules (pictures of bath, dinner, bedtime) can reduce anxiety.
• Read together: Even if they do not sit still, talk about the pictures and sounds.
• Stay calm: Your emotional state influences your child; take breaks when needed.

Final Words of Encouragement

You are your child's best advocate. Noticing early signs of autism is not a diagnosis, and a diagnosis is not a limitation. With the right supports, most children with autism make significant progress, especially when therapy begins early. You are not alone - there are families, professionals, and free resources ready to help. Our service is one step in that journey, connecting you with vetted, BCBA-led ABA providers who can work with your insurance.

Reach out today. The next chapter can be filled with growth, joy, and connection for your whole family.