Autism

Autism is a condition occurring in infancy or childhood. Children are not simply small adults: normal development, age, weight, feeding, immunisation history and family observations are essential to safe assessment. It is grouped in the Children’s Health section of this library. A diagnosis should not be made from a name or symptom list alone: a clinician considers onset, duration, severity, medical history, examination and appropriate tests. The expected course differs between people, and similar symptoms can arise from unrelated conditions.

Possible features of Autism may include changes in feeding, breathing, activity, sleep, behaviour, skin colour, stool or urine, together with fever, pain, rash, cough or delayed development. Babies may show illness only through poor feeding, unusual sleepiness or irritability. Not every person develops every feature, and symptom intensity does not always reflect disease severity. Keep a record of when symptoms started, their pattern, possible triggers, medicines and relevant family history. Seek urgent paediatric care for breathing difficulty, blue or very pale colour, seizures, severe dehydration, a non-blanching rash, persistent vomiting, marked drowsiness, a stiff neck or fever in a very young infant.

The underlying explanation for Autism must be assessed individually. In this group, important mechanisms can include infection, congenital or genetic factors, developmental variation, allergy, nutritional deficiency, injury or environmental exposure, depending on the condition. A careful history and age-appropriate examination are needed before assigning a cause. Risk factors increase probability but do not prove that a person has the condition. Diagnosis may require blood tests, imaging, functional testing, examination by a specialist or tissue sampling, depending on the suspected disorder.

Treatment for Autism should be based on a confirmed diagnosis and current clinical guidance. Typical management principles include age-appropriate diagnosis, hydration and nutrition support, symptom relief and specific treatment where indicated. Developmental conditions may need coordinated therapy and school support. Medicine doses must be based on the child’s weight and prescribed guidance. The balance of benefit and risk varies with age, pregnancy, other illnesses and current medicines. Do not stop prescribed treatment or substitute complementary products without discussing it with the treating clinician. Follow-up is important to measure response, identify adverse effects and revise the plan. Seek urgent paediatric care for breathing difficulty, blue or very pale colour, seizures, severe dehydration, a non-blanching rash, persistent vomiting, marked drowsiness, a stiff neck or fever in a very young infant.