Autism in children: simple definition, warning signs and first steps

What is autism (ASD)? A plain-language definition, warning signs by age, misconceptions to drop, and what to do first as a parent.

Last updated: 2026-10-12

The definition in one sentence

Autism is a neurodevelopmental condition that affects how a person communicates, interacts and perceives the world — with often amplified sensations (noise, textures, crowds) and intense, specific interests.

What it means in practice

An autistic child is not "closed off" by choice: their brain processes social and sensory information differently. Things that seem simple to us (greeting, tolerating a supermarket, switching activities) take enormous effort. In exchange, they may excel in precise areas (memory, images, numbers, music).

Warning signs by age

• Before 18 months: little or no eye contact, does not respond to their name, does not point to share interest, few social smiles.
• Around age 2: no words (or words lost), no pretend play, repetitive movements (rocking, lining up objects, spinning wheels).
• Age 3 and beyond: no sentences, echoes words (echolalia), distress at changes or noise, very restricted intense interests.

One isolated sign means nothing. It is the combination and persistence that warrant talking to your pediatrician.

The three first steps when in doubt

1. Talk to your pediatrician with concrete examples and ask for a developmental assessment.
2. Stimulate without waiting: talk, name things, play face to face, sing — whatever the final diagnosis, it helps.
3. Learn about the pathway: our guide to autism diagnosis in Morocco details the steps and available support.

Read more

Other types of disability explained simply · My child speaks late: what to do?

Frequently asked questions

What is the difference between autism and ASD?

ASD (autism spectrum disorder) is the current medical term. "Spectrum" means autism looks very different from one person to another: some speak a lot, others not at all; some have an associated intellectual disability, others do not.

Can autism be cured?

Autism is not a disease to be cured; it is a particular way the brain works. But early, tailored support (speech therapy, structured educational approaches) clearly improves communication, autonomy and well-being.

Do vaccines cause autism?

No. This rumour comes from a falsified study, refuted since by extensive international research. No vaccine link has ever been demonstrated.