Summary
Intellectual disability refers to difficulties with general cognitive function, while learning difficulties affect specific areas such as reading, writing, or math. Children with intellectual disabilities have an IQ below 70, with mild cases falling between 50 and 70. In contrast, children with specific learning difficulties have normal intelligence but struggle with certain tasks, such as language (specific language impairment), reading (dyslexia), or math (dyscalculia). While these terms have distinct definitions, they are sometimes used interchangeably.
Epidemiology
- Cognitive impairment affects about 2–3% of children, with common causes including Down syndrome and fetal alcohol syndrome.
- Learning difficulties are more common, affecting around 10% of children, with dyslexia being the most frequently diagnosed (5–12%).
- Boys are more likely than girls to be affected by both cognitive impairment and learning difficulties.
- Most conditions linked to these challenges are present from birth and result from differences in brain development.
- Children with mild intellectual disability may not show obvious signs until they begin school, where learning challenges become more apparent.
Diagnosis and When to Seek Help
A child may need an evaluation if they:
- Show delays in reaching developmental milestones.
- Struggle with learning despite normal teaching methods.
- Have difficulty understanding or expressing language.
- Experience sudden loss of previously acquired skills.
A multidisciplinary team (MDT) approach is used to diagnose and support children. Specialists involved may include:
- Pediatricians or child psychiatrists (to assess overall development).
- Psychologists (to evaluate cognitive abilities, such as IQ).
- Speech therapists (to assess communication skills).
- Occupational therapists (for motor coordination issues affecting writing and daily activities).
If a child suddenly develops learning difficulties or loses previously acquired skills, doctors may investigate underlying medical conditions such as brain injury or neurological disorders.
Management
- Educational support: Early intervention, tailored learning strategies, and individualized education plans (IEPs) help children succeed.
- Speech therapy: Supports language development in children with communication difficulties.
- Occupational therapy: Helps children with motor coordination issues (e.g., dyspraxia) improve their writing and daily skills.
- Early reading programs: Can improve language and reading skills in children with intellectual disabilities.
Follow-Up and Monitoring
Children with learning difficulties or intellectual disabilities benefit from ongoing support to ensure they reach their full potential. Regular assessments help track progress, adjust interventions, and provide appropriate educational and developmental support.
Differentials
Common
- Dyslexia
- Attention-deficit hyperactivity disorder (ADHD)
- Down’s syndrome (trisomy 21)
- Fragile X syndrome
Uncommon
- Dyscalculia
- Specific language disorder
- Central auditory processing disorder (CAPD)
- Developmental co-ordination disorder/dyspraxia

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