Developmental Language Disorder (DLD): What Every Parent and Teacher Should Know

Have you ever noticed a child who is bright and capable, yet struggles to find the right words, follow instructions, or keep up in conversations? If this sounds familiar, the answer could lie in something called Developmental Language Disorder, or DLD.

DLD is one of the most common developmental conditions affecting children in Australia, yet most people have never heard of it. This blog is here to change that — because the sooner we understand DLD, the sooner we can support the children who live with it every day.

What Is Developmental Language Disorder?

Developmental Language Disorder is a lifelong, neurodevelopmental condition in which a child has significant difficulty understanding and using spoken language — for no known reason. It is not caused by hearing loss, intellectual disability, autism, brain injury, or a lack
of exposure to language. In fact, DLD often exists in children who appear perfectly healthy and capable in every other way (RADLD, 2022).

The term DLD was formally established in 2017 through an international consensus process involving 59 leading experts from across the English-speaking world. It replaced older, sometimes confusing terms like Specific Language Impairment (SLI) (The DLD Project, 2025). If you’ve heard those terms before, DLD is the current, preferred language.

Importantly, DLD is not something children simply grow out of. It is a lifelong condition — though with the right support, children with DLD can absolutely thrive (Language Disorder Australia, 2024).

How Common Is DLD?

DLD affects approximately 1 in 14 children — that’s roughly two students in every classroom of 30 (RADLD, 2022). To put that in perspective, DLD is seven times more prevalent than autism spectrum disorder (SPELD NSW, 2021). Despite this, public awareness remains alarmingly low, and many children go undiagnosed for years.

Because DLD does not have visible physical signs, it is often described as a “hidden” condition. Children with DLD can look just like their peers — making it easy for their difficulties to be misunderstood or attributed to laziness, inattention, or behaviour problems.

What Are the Signs of DLD?

Signs of DLD can vary between children, but commonly include:

• Difficulty following multi-step instructions
• Struggling to find the right words, often using vague terms like “thing” or “stuff”
• Using incorrect grammar — for example, saying “I go” instead of “I went”
• Difficulty understanding the meaning of words, sentences, or stories
• Trouble retelling events or staying on topic in conversation
• Falling behind in reading, writing, and other literacy skills
• Appearing frustrated, withdrawn, or disengaged — particularly in language-heavy situations

It is worth noting that DLD commonly occurs alongside other conditions such as ADHD, dyslexia, dysgraphia, and developmental coordination disorder (Children’s Health Queensland, 2023). This overlap can sometimes make identification more complex — which is why a thorough assessment by a speech pathologist is so important.

Why Does It Matter?

Language underpins almost everything we do — learning, forming friendships, managing emotions, and navigating the world. When language is a persistent challenge, the ripple effects can be significant.

Research tells us that children with DLD are six times more likely to experience anxiety and three times more likely to develop clinical depression compared to their peers (RADLD, 2021). They are also at heightened risk of academic difficulties, social isolation, and poor
long-term employment outcomes if they do not receive adequate support (Language Disorder Australia, 2024).

The good news? With early identification and targeted intervention, children with DLD are absolutely capable of achieving at school and in life. They are intelligent, resourceful, and resilient. They simply need the right support in place.

What Can Parents Do?

If you have concerns about your child’s language development, trust your instincts. Early action makes a real difference. Here are some practical steps:

• Contact a Speech Pathologist to discuss your concerns. They are the key professionals in assessing and diagnosing DLD
• Give your child extra time to respond — processing language can take longer for children with DLD
• Use clear, simple language and break instructions into smaller steps
• Continue creating a language-rich home environment: read together daily, narrate your day, and encourage lots of conversation

You don’t need a referral to see a Speech Pathologist. Your GP may be able to support access to Medicare rebates through a Chronic Disease Management plan.

What Can Teachers Do?

Teachers play a powerful role in identifying and supporting children with DLD. A few simple adjustments in the classroom can make a world of difference:

• Use shorter, clearer sentences when giving instructions
• Break tasks into manageable steps and check for understanding
• Allow additional processing time before expecting a response
• Use visual supports — pictures, written instructions, gesture — to reinforce spoken
  language
• Be mindful that challenging behaviour may be a sign of communication difficulty, not
  defiance
• Refer to a speech pathologist if you notice persistent language difficulties

Children with DLD often tell us they feel invisible and misunderstood in the classroom (The DLD Project, 2025). A teacher who notices, understands, and advocates for them can change the entire trajectory of a child’s school experience.

When Should You Seek Help?

If a child aged four years or older is showing persistent difficulties with understanding or using language that is affecting their learning, friendships, or daily life — it is time to act. Don’t wait and see. Contact a speech pathologist as soon as possible (Children’s Health Queensland, 2023).

Speech Pathology Australia is the national peak body for the profession and can help you find a certified practising speech pathologist in your area. Early assessment is the first and most important step.

You Are Not Alone

A diagnosis of DLD can bring many emotions — worry, relief, uncertainty, or all three at once. Whatever you are feeling, please know that you are not alone. There is a growing community of families, educators, speech pathologists, and researchers all working together to ensure children with DLD get the recognition and support they deserve.

DLD may be lifelong — but it does not define what a child is capable of achieving. With awareness, understanding, and the right support, children with DLD can and do flourish.

If you would like to talk about your child’s communication development, our team is here to help. Reach out today.