Quick read
Key points
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Angelman syndrome is a rare genetic condition affecting the nervous system, caused by a missing or non-functioning copy of a specific gene inherited from the mother. It typically becomes apparent in the first year or two of life, as developmental delays become noticeable.
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Topic-specific prevention and risk reduction will be added during the article-specific evidence audit.
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Your child is showing delayed developmental milestones and you have concerns
01 · Know
What is Angelman Syndrome?
Angelman syndrome is a rare genetic condition affecting the nervous system, caused by a missing or non-functioning copy of a specific gene inherited from the mother. It typically becomes apparent in the first year or two of life, as developmental delays become noticeable.
Children with Angelman syndrome often have delayed development, difficulty with speech, problems with balance and movement, and a happy, excitable demeanour with frequent smiling and laughter. Many also experience seizures. While there's no cure, early intervention with therapies can make a significant difference to a child's development and quality of life.
02 · Understand
Clinical context
Early intervention makes a real difference
Starting physiotherapy, speech and language therapy, and occupational therapy as early as possible helps children with Angelman syndrome build skills and reach their fullest potential.
03 · Act
When to See a Doctor
- 1Your child is showing delayed developmental milestones and you have concerns
- 2Your child has already been diagnosed and develops new symptoms, especially seizures
- 3You have questions about therapies, supports, or services available for your child
04 · Prevent & manage
Practical steps
This Is a Lifelong Condition Needing a Care Team
Angelman syndrome requires ongoing, coordinated support from a range of specialists — this isn't something managed alone at home, though families play a central role in daily care and therapy.
- 1Build a multidisciplinary care team.This typically includes a paediatrician, neurologist, physiotherapist, speech and language therapist, and occupational therapist.
- 2Engage with early intervention services.These services support development in the crucial early years and can make a lasting difference.
- 3Connect with support organisations.Charities and parent groups dedicated to Angelman syndrome can offer practical advice and emotional support from people who understand.
- 4Monitor for seizures.Many children with Angelman syndrome develop epilepsy — knowing the signs and having a plan with your neurology team is important.
- 5Celebrate your child's individual progress.Development often looks different from typical milestones — each child's own progress is worth celebrating.
Medical information notice
Health education, not individual medical advice
BarnMD Health Library provides general health education for public health literacy. Reading this article does not establish a doctor-patient relationship and this information is not a diagnosis, prescription, or personalised treatment plan. If you have symptoms or concerns about your health, seek appropriate advice from a qualified healthcare professional. If you develop emergency warning signs, seek urgent or emergency medical attention.
BarnMD Bottom Line
Angelman syndrome is rare, but a strong network of specialists, therapies, and support organisations exists to help children and families thrive.
Early intervention therapies have a meaningful, lasting impact on development — starting as early as possible is valuable.