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Early detection changes lives. Learn the critical autism symptoms, the concept of “masking” in girls, and the genetic risk factors every parent should know.

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Decoding Developmental Signals

Decoding Developmental Signals

Autism is not a disease that appears overnight. It is a developmental pathway that looks different from the “neurotypical” norm. Signs often appear gradually. A parent might notice their baby is unusually quiet, doesn’t like to cuddle, or seems fascinated by ceiling fans but ignores people.

At LIV Hospital, we teach parents that these behaviors are forms of communication. The child is not being difficult; they are processing the world differently. Recognizing warning signs of autism early, often before a child can even speak, is the key to unlocking their potential. While every child develops at their own pace, consistent delays in social engagement are the strongest indicators that an evaluation is needed.

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Common Warning Signs: Social Communication

Common Warning Signs: Restrictive Behaviors

Social disconnect is the hallmark of ASD. These signs are often the first to be noticed by parents or caregivers.

  • Lack of Eye Contact: The child does not look at you when being fed or smiled at.
  • No Response to Name: By 12 months, the child does not turn around when their name is called, often appearing deaf.
  • Delayed Speech: No babbling by 12 months, or no single words by 16 months.
  • Lack of Pointing: The child does not point at objects to show interest (e.g., pointing at an airplane).

Play Differences: Difficulty with “pretend play” (like feeding a doll) or preferring to play alone rather than with peers.

Common Warning Signs: Restrictive Behaviors

These behaviors are often attempts by the child to regulate their sensory system or create predictability.

  • Repetitive Movements: Hand flapping, rocking back and forth, or spinning in circles.
  • Rigid Routines: Getting extremely upset over minor changes, like driving a different route to school or eating food in a different order.
  • Obsessive Interests: Having an intense focus on specific topics (like train schedules or dinosaur names) to the exclusion of everything else.

Sensory Sensitivities: extreme reactions to specific sounds, textures, or lights. Conversely, they might have a high pain tolerance.

Emergency Symptoms: When to Seek Immediate Help

Emergency Symptoms: When to Seek Immediate Help

Autism itself is not a medical emergency. However, two specific situations require urgent professional attention.

  • Regression: If a child had skills (like saying “mama” or waving bye-bye) and suddenly loses them, this is a major red flag. Regression can indicate autism, but it can also signal other neurological conditions like seizures or metabolic disorders.

Self-Injurious Behavior: In severe cases or during meltdowns, a child may bang their head, bite themselves, or scratch aggressively. This requires immediate behavioral and medical intervention to ensure physical safety.

Risk Factors You Can Control

While the primary causes of autism are biological, certain environmental factors during pregnancy are linked to a higher risk. Managing these can support healthy brain development.

  • Prenatal Health: Taking prenatal vitamins with folic acid before and during pregnancy is crucial for brain formation.
  • Medication Management: Certain prescription drugs taken during pregnancy (such as valproic acid for seizures) have been linked to a higher risk of ASD. Always consult your doctor before stopping or starting medication.
  • Birth Intervals: Some research suggests that conceiving again very quickly (less than 12 months) after a birth may slightly increase the risk for the second child.

Toxin Avoidance: Minimizing exposure to heavy metals and air pollution during pregnancy is a general recommendation for fetal health.

Risk Factors You Cannot Control

The strongest drivers of autism are genetic and biological. These autism risk factors help doctors determine which children need closer monitoring.

  • Genetics: This is the most significant factor. If a family has one child with ASD, the risk of a second child having it is about 20%.
  • Parental Age: Children born to older parents (both mothers and fathers over 40) have a slightly higher risk of ASD.
  • Premature Birth: Babies born extremely early (before 26 weeks) or with very low birth weight have a higher prevalence of developmental disabilities.

Gender: Boys are about four times more likely to be diagnosed with autism than girls.

Gender Differences in Symptoms

The statistic that “boys get autism more than girls” is being challenged. Experts now believe girls are simply underdiagnosed because their symptoms look different.

  • Boys tend to show more externalizing behaviors. They may be hyperactive, disruptive, or exhibit obvious repetitive motions (like flapping).

Girls often display “internalizing” symptoms. They are often quieter and more passive. Crucially, girls are better at “masking” or camouflaging. They may copy the social behaviors of other children to fit in, hiding their confusion. Because they appear sociable, they are often missed by teachers and doctors until the social demands of adolescence become too high to fake.

Understanding Your Total Risk

It is rarely one single gene or event that causes autism. It is likely a combination of genetic predisposition interacting with environmental triggers. For example, a child with a genetic marker for ASD who is also born prematurely has a higher total risk profile.

At LIV Hospital, we look at the whole picture. We take a detailed family history and review prenatal records. Understanding these risks prevents us from dismissing parental concerns. If a child is in a high-risk category, we do not “wait and see.” We screen early and aggressively, ensuring that if the child is on the spectrum, they get support the moment they need it.

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FREQUENTLY ASKED QUESTIONS

What are the warning signs of autism?

Common warning signs include delayed speech, lack of eye contact, and not responding to their name by 12 months. You might also notice repetitive behaviors like hand flapping or lining up toys, and extreme distress when routines are changed.

Children with a sibling who has autism are at the highest risk due to genetics. Babies born prematurely or to older parents are also in a higher risk category. Additionally, boys are statistically more likely to receive a diagnosis than girls.

Yes. Boys often show more obvious repetitive behaviors and social withdrawal. Girls are often better at mimicking social interactions (“masking”) and may have more socially acceptable obsessions (like animals or dolls), leading to missed or delayed diagnoses.

While lifestyle does not cause autism directly, certain factors during pregnancy can influence risk. Taking certain anti-seizure medications (like valproate) during pregnancy or having short intervals between pregnancies (less than a year) has been associated with a slightly higher risk.

Yes, autism is strongly hereditary. Research shows that genetics plays a massive role. If you have a child with autism, the likelihood of having another child on the spectrum is significantly higher than in the general population. Twin studies also confirm a strong genetic link.

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