Neurodevelopmental disorder affecting communication and behavior. Review possible symptoms, contributing factors, assessment, warning signs and care options.
About Autism Spectrum Disorder
Neurodevelopmental disorder affecting communication and behavior
ASD is a developmental disorder that affects communication and behavior, appearing in early childhood.
It encompasses a wide spectrum of symptoms and abilities, from mild to severe.
Editorial update (28 September 2026): structured medical content awaits clinical reviewer sign-off.
How assessment may be approached
A child health assessment may include age, development, feeding, hydration, fever, activity, immunization, exposures and caregiver concerns. Examination and tests are selected for the child's presentation.
Care can include monitoring, hydration, age-appropriate medicine dosing, vaccination, treatment of the cause and clear return precautions. A caregiver should receive dosing and danger-sign instructions.
When to seek prompt care
Seek urgent care for breathing difficulty, poor feeding, persistent vomiting, dehydration, extreme sleepiness or confusion, seizure, blue color, fever in a young infant, severe pain or a rapidly worsening condition.
Symptoms
- Difficulty with communication
- Repetitive behaviors
- Social interaction difficulties
- Restricted interests
- Sensory sensitivities
Possible causes
- Genetic factors
- Environmental factors
- Brain development
- Unknown exact cause
Care and treatment options
- Behavioral therapy
- Educational interventions
- Speech therapy
- Occupational therapy
- Family support
Key points
- Affects 1 in 44 children
- More common in boys
- Lifelong condition
- Early intervention is key
Preparing for a consultation
- Child's age, weight, immunization and medical history.
- Temperature, feeding, urine output, breathing and activity.
- Medicines already given, including dose and time.
- Exposure to illness, injury or new foods/medicines.
Questions worth asking
- Is Autism Spectrum Disorder the most likely explanation for these symptoms, and what alternatives should be checked?
- Which symptoms or findings would require urgent review?
- Are medicines, underlying health problems or lifestyle factors contributing?
- What tests or examinations are needed now, and what can safely wait?
- What treatment or self-care options are reasonable, and when should I be reviewed again?
- What is the expected benefit, limit, cost and follow-up plan for the suggested care?
Related conditions
Related clinicians
Medical information limitations
This page summarizes listed condition information and cannot confirm a diagnosis or choose treatment. Do not start, stop or change prescribed treatment based only on this page.
Common questions
What is Autism Spectrum Disorder?
Neurodevelopmental disorder affecting communication and behavior This is general information; the name describes a possible diagnosis or clinical problem, not a personal diagnosis.
How might a clinician assess Autism Spectrum Disorder?
A child health assessment may include age, development, feeding, hydration, fever, activity, immunization, exposures and caregiver concerns. Examination and tests are selected for the child's presentation.
What care may be discussed?
Care options listed include Behavioral therapy, Educational interventions, Speech therapy, Occupational therapy. Which option is appropriate depends on the confirmed cause, severity, preferences and contraindications.
When should Autism Spectrum Disorder be checked urgently?
Seek urgent care for breathing difficulty, poor feeding, persistent vomiting, dehydration, extreme sleepiness or confusion, seizure, blue color, fever in a young infant, severe pain or a rapidly worsening condition.
How should I prepare for a consultation?
Child's age, weight, immunization and medical history. Temperature, feeding, urine output, breathing and activity. Medicines already given, including dose and time. Exposure to illness, injury or new foods/medicines. Bring previous reports and a current medicine list where relevant.
Can this page diagnose or treat the condition?
No. A page about Autism Spectrum Disorder can help you understand possible features and questions, but it cannot confirm a diagnosis or choose treatment. A qualified clinician should assess your symptoms, history and any test results.
General information only; it is not a diagnosis or a substitute for a qualified clinician’s advice.