At 18 months, there are specific benchmarks used to compare typical development with potential developmental red flags. While every child grows at their own pace, the following milestones are generally expected by this age:

• Communication and Language: Typical 18-month-olds use between 5 and 20 single words and point to objects or events to show interest to others.
• Social and Play Skills: Children at this stage typically begin to engage in simple pretend play, such as feeding a doll or pretending to talk on a toy phone. They also demonstrate joint attention by showing toys to caregivers and checking for a reaction.

Possible Autism Red Flags at 18 Months

If a child is not meeting these benchmarks, it may indicate a need for professional evaluation. Specific indicators to watch for include:

• Limited or absent pointing to show interest in things.
• Language delays, such as using very few words or experiencing a regression where previously learned words or gestures disappear.
• A lack of pretend play or using toys in unusual, repetitive ways (e.g., focusing on parts of a toy rather than its intended function).
• Not responding when their name is called or avoiding eye contact.

Because the window between 18 months and three years is a period of high neuroplasticity, early identification and intervention through services like ABA therapy can be highly effective in building communication and social skills.

• Autism Milestones by Age: Complete Developmental Guide