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Down Syndrome information card
🧬 Genetic Condition

Down Syndrome

A genetic condition caused by an extra copy of chromosome 21. People with Down syndrome have their own personalities, strengths, and the right to full, self-determined lives.

🧸 Early Years 🏫 School Age 🧑 Teens & Adults ♾️ Lifelong

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📖 Overview

Down syndrome, also called Trisomy 21, is a genetic condition that occurs when a person is born with an extra copy of chromosome 21. It is the most common chromosomal condition in the UK, occurring in approximately 1 in every 1000 births.

Down syndrome causes some degree of intellectual disability and is associated with characteristic physical features including lower muscle tone, a flatter facial profile, upward-slanting eyes, and a single palmar crease. However, every person with Down syndrome is an individual — appearance, personality, abilities, and support needs vary significantly.

People with Down syndrome often have friendly, sociable personalities and a strong sense of humour. Many live semi-independently, hold jobs, form relationships, and make meaningful contributions to their families and communities. Expectations matter enormously — historically low expectations have limited opportunities that were entirely possible.

Associated health conditions are common and need monitoring: congenital heart defects (present in around 40% of people with Down syndrome), thyroid conditions, vision and hearing difficulties, increased infection risk, and higher risk of Alzheimer's disease in later life. Regular health checks are important throughout life.

Speech and language development is usually delayed. Early speech and language therapy, alongside high expectations and consistent communication support, significantly improves outcomes. Signing alongside speech supports communication development.

Early intervention across all areas — physiotherapy for low muscle tone, occupational therapy for fine motor skills, speech therapy, and specialist early years education — makes a significant difference to long-term outcomes.

🔍 Key Characteristics

Extra chromosome 21 Trisomy 21
Characteristic physical features
Learning disability affecting pace
Lower muscle tone hypotonia
Possible heart hearing vision thyroid issues
Speech and language delays
Strong visual learning
Life expectancy 60-plus with care

🌅 What Day to Day Life Can Look Like

Low muscle tone affects movement, fine motor skills, and speech from birth
Speech development is delayed and may remain difficult to understand — this does not reflect intelligence
Learning takes longer and benefits from visual, multisensory, and repetition-based approaches
Hearing checks are important — hearing loss is common and affects speech development
Health appointments are a regular part of life — heart, thyroid, eyes, ears, spine
Social skills are often a strength — people with Down syndrome are frequently described as warm and sociable
Independence skills develop but often later and with more support than peers
Transitions — to school, to secondary, to adult services — need careful planning
Many people with Down syndrome have a clear sense of their own preferences, likes, and dislikes
Inclusion in mainstream settings with appropriate support is achievable and beneficial for many

❌ What People Often Get Wrong

People with Down syndrome are not all the same — they are individuals with different personalities, interests, and abilities
Down syndrome does not mean a child cannot learn — it means they learn differently and often more slowly
Prenatal diagnosis does not determine outcomes — people with Down syndrome are living richer, fuller lives than ever before
Down syndrome is not caused by anything the parents did
People with Down syndrome experience the full range of human emotions including frustration, grief, and anger
Adults with Down syndrome have the right to relationships, including romantic relationships
Low expectations are one of the biggest barriers people with Down syndrome face — not the condition itself
People with Down syndrome are at higher risk of Alzheimer's disease — this needs to be monitored, not ignored
The old terminology is offensive — Down syndrome, not Downs, and person-first or identity-first language depending on individual preference
People with Down syndrome should be included in decisions about their own lives, not just talked about

✅ What Helps

Early intervention speech physio OT
Visual learning with pictures demonstrations
Inclusive education with support
Regular health monitoring cardiac hearing
Makaton signing to support communication
High expectations assume capability
Social inclusion community participation
Transition planning for adulthood
Advocacy training for self-determination
Combat low expectations assumptions
Informational only. Consult professionals for individualised support.

🏫 School & Education Support

EHCP from early years with clear communication and learning targets
Total communication approach — speech, signing, visuals, AAC where needed
Reading programmes designed for Down syndrome — structured literacy with visual supports works well
Small group or one-to-one for specific skill building alongside class inclusion
Peer support and friendship facilitation — social inclusion is as important as academic inclusion
Health care plan for any medical needs including medication, hearing aids, or physical needs
High expectations communicated clearly to all staff — children rise to expectations
Transition planning well in advance for secondary and post-16
Speech and language therapy integrated into the school day not just a weekly pullout
Celebrate achievements on the child's own timeline

⚠️ Safety & Red Flags

Unexplained changes in behaviour — may indicate pain, illness, or abuse the person cannot communicate
Hearing aids not worn or not working — impacts speech and learning significantly
Signs of thyroid problems — weight changes, lethargy, or mood changes
Atlantoaxial instability signs — neck pain, changes in gait, or loss of bladder control — needs urgent medical assessment
Safeguarding concerns — people with Down syndrome are at increased risk of abuse
Regression in previously held skills at any age needs assessment
Signs of depression or anxiety — common and often missed
In adults: early signs of memory loss or confusion — Alzheimer's risk is significantly higher
Isolation from peers or community as the person gets older
Placement that is not meeting needs or where bullying is occurring

🔗 Related Conditions

Intellectual Disability (ID) Autism

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