Developmental Language Disorder (DLD)
What Is Developmental Language Disorder?
Developmental language disorder (DLD) is a condition where a child has significant difficulty learning and using language that cannot be explained by hearing loss, intellectual disability, or another known condition. DLD affects both understanding (receptive language) and use of language (expressive language), though the balance varies from child to child.
DLD is far more common than many people realise. It affects approximately 2 children in every classroom of 30. Despite this, it often goes unrecognised because children with DLD may appear to be coping on the surface.
Signs of DLD
Signs vary by age, but may include:
- Slow to start combining words as a toddler
- Shorter sentences than peers, with frequent grammatical errors
- Difficulty following multi-step instructions
- Trouble finding the right word (word-finding difficulties)
- Struggling to tell a story or explain an event in order
- Difficulty understanding classroom language, especially as it becomes more complex
- Reading and writing challenges that persist beyond early literacy instruction
How DLD Differs From Being a Late Talker
Some late talkers catch up by school age without intervention. Children with DLD continue to struggle with language well beyond the toddler years. The difficulties tend to become more visible as language demands increase, particularly when children begin school and are expected to follow spoken instructions, read, write, and participate in group discussions.
How Speech Therapy Helps
A speech-language pathologist can assess your child’s language profile and create a targeted plan. Therapy for DLD typically includes:
- Building vocabulary and word-finding strategies
- Strengthening sentence structure and grammar
- Improving listening comprehension and ability to follow instructions
- Supporting narrative skills (telling and retelling stories)
- Collaborating with teachers to support classroom learning
- Addressing reading and writing difficulties that stem from underlying language weaknesses
Therapy is most effective when started early, but children and adolescents with DLD continue to benefit from support at any age.
Frequently Asked Questions
- What is developmental language disorder?
- Developmental language disorder (DLD) is a lifelong condition where a child has persistent difficulty understanding and/or using spoken language, without a known cause such as hearing loss, autism, or intellectual disability. It affects roughly 1 in 14 children, making it one of the most common childhood conditions.
- Is DLD the same as a speech delay?
- No. A speech delay refers to slower-than-expected development of speech sounds or vocabulary, and many children with a speech delay catch up. DLD is a persistent difficulty with the language system itself — grammar, vocabulary, sentence structure, and/or comprehension — that does not simply resolve with time.
- Can children with DLD succeed in school?
- Yes. With appropriate support from a speech-language pathologist and classroom accommodations, children with DLD can make strong academic progress. Early identification and intervention are key to building the language and literacy skills they need.