Autism in Babies

• ●No responsive social smile (does not respond to the caregiver's smile)
• ●Limited or absent eye contact
• ●Does not share facial expressions

• ●Does not point to show interest (joint attention)
• ●Does not consistently respond to their own name
• ●Does not imitate simple gestures (waving bye-bye, clapping)
• ●Absence of varied babbling

• ●No meaningful words by 12 months
• ●Does not use gaze to communicate desire (does not look at an object then back at the adult)
• ●Very repetitive and rigid play
• ●Does not bring objects to show a caregiver

• ●Fewer than 50 words at 24 months
• ●No spontaneous 2-word phrases
• ●Regression — loses skills previously had (communication, social)
• ●More interest in parts of objects than the whole object
• ●Marked sensory sensitivities

Signs are nonspecific — do not self-diagnose

Warning signs do NOT confirm autism. They can have other explanations (hearing loss, non-ASD language delay, developmental variation). The goal is to trigger a professional evaluation — not a self-made diagnosis or a dismissal without evaluation.

Regression is an important warning sign

If a child was developing skills and stopped using them (stopped talking, stopped making eye contact they used to make), that is a priority warning sign regardless of age.

Reliable diagnosis from 18-24 months

Before 18 months, diagnosis is possible in more evident cases but less stable. From age 2, diagnosis is more accurate. Early evaluation does not require waiting until age 2 — it can start earlier and be refined over time.

At what age does autism appear?

Autism does not "appear" — it is a neurodevelopmental condition present since before birth. Observable behavioral signs can appear in the first months of life, with clearer signals typically between 12 and 24 months. In some cases, especially when there is regression, parents notice a change around 15-18 months.

Do autistic babies cry a lot or very little?

There is no single pattern. Some babies with ASD are described as "very quiet" — they cry little and seem very easy. Others are fussy, hard to soothe, with sensory sensitivities that cause frequent distress. The absence of crying is not a sign of autism; it is the combination of multiple developmental markers across communication and social domains that raises concern.

Do vaccines cause autism?

No. The hypothesis of a link between vaccines and autism came from a 1998 study that was retracted for scientific fraud, and whose author had his medical license revoked. Since then, dozens of studies involving hundreds of thousands of children across multiple countries have found no association. Vaccinating is safe. Not vaccinating carries real risks of serious disease.

What does an ASD diagnosis open up for a child?

It depends on the country, but an ASD diagnosis generally opens the door to: the right to inclusive education with specialized support; priority service in public and private settings; access to health services (speech therapy, occupational therapy, psychology) through public health systems or insurance; and a classroom aide when needed. A formal medical report is typically the entry point to these rights.

What is the best treatment for autism in babies?

Early intervention is the scientific consensus — the sooner, the better. Approaches with the most evidence: ABA (Applied Behavior Analysis) delivered in a naturalistic, non-punitive format; ESDM (Early Start Denver Model) for young children; speech therapy for communication; occupational therapy for sensory integration. There is no specific medication for ASD — medications may be used for associated symptoms (anxiety, irritability, sleep).