Does My Child Have a Language Delay?

Children develop speech and language skills along a remarkably predictable path, and understanding what's typical for each age is one of the most powerful tools a parent can have. According to the National Institute on Deafness and Other Communication Disorders (NIDCD), the first three years of life represent the most critical window for speech and language acquisition, with skills developing most rapidly when children are consistently exposed to rich language environments. By 12 months, most children are babbling with varied sounds and saying their first words. By 24 months, they're typically combining two words together and following simple two-step directions. By age 3, most children can be understood by familiar adults most of the time, carry on short conversations, and use sentences of 3–4 words. The American Speech-Language-Hearing Association (ASHA) notes that at school entry, approximately 10–12% of children present with a communication disorder — making it one of the most common developmental concerns in early childhood. These milestones matter not just for communication, but because early language development is closely linked to later literacy, academic success, and social-emotional wellbeing.

So when should a parent be concerned? Research consistently shows that early identification leads to better outcomes, and that waiting to see if a child "catches up" on their own carries real risk. Key signs that your child may benefit from a professional evaluation include: not babbling by 12 months, not using any single words by 16 months, not combining two words by 24 months, losing language skills they previously had at any age, being difficult to understand by familiar adults after age 3, or struggling to follow directions, answer questions, or engage in back-and-forth conversation. For school-age children, signs of a language delay can look different , watch for difficulty understanding or following multi-step directions, trouble finding the right words, struggles with reading comprehension, and/or difficulty organizing thoughts when speaking or writing. A study in Early Child Research Quarterly found that early social communication skills and vocabulary production were significant predictors of persistent language delay; meaning that what parents notice in the first two years of life is clinically meaningful, not something to brush aside. Importantly, language delays do not always resolve on their own; research shows that children who begin school with below-average language skills often face ongoing challenges in social, academic, and behavioral domains well into adolescence. If any of these signs feel familiar, whether your child is a toddler or in elementary school, an evaluation with a speech-language pathologist is not an overreaction. It is the correct next step.

References:

National Institute on Deafness and Other Communication Disorders (NIDCD). Speech and Language

Developmental Milestones. https://www.nidcd.nih.gov/health/speech-and-language

American Speech-Language-Hearing Association (ASHA). (2023). Developmental milestones for

communication.

Morgan, L., Delehanty, A., Dillon, J. C., Schatschneider, C., & Wetherby, A. M. (2020). Measures of

early social communication and vocabulary production to predict language outcomes at two and

three years in late-talking toddlers. Early Child Research Quarterly, 51, 366–378.