What Are the Symptoms of Autism? The Importance of Early Diagnosis

Autism symptoms are neurodevelopmental differences that typically emerge in the first three years of life, manifesting as difficulties in social communication and repetitive behaviors. Avoiding eye contact, failing to respond to their name, and delayed speech are among the earliest signs most frequently noticed by parents. When autism is identified through early diagnosis, a child's developmental potential can be maximized thanks to specialized education and intervention programs.

• Autism Spectrum Disorder (ASD) is a neurodevelopmental condition characterized by difficulties in social interaction and communication.
• In babies, a lack of eye contact and failing to respond to smiles can be among the first signs.
• Atypical autism refers to a condition where a child shows some symptoms of autism but does not meet the full diagnostic criteria.
• Early diagnosis and intensive special education directly improve the child's independent life skills.
• Diagnosis is made by child and adolescent psychiatry specialists through clinical observation and standardized tests.

What is Autism Spectrum Disorder?

Autism Spectrum Disorder (ASD) is a neurodevelopmental difference that affects the brain's development and functioning, altering how an individual perceives the world and communicates with others. The word "spectrum" indicates that autism can appear in varying degrees of severity and in many different forms in each child. While some children can be completely independent in their daily lives, others may require lifelong support. Atypical autism is an older term used to describe a condition where only some autism symptoms are present or where symptoms are milder; however, in modern medicine, it is evaluated as part of the broader spectrum.

According to World Health Organization data, approximately one in every 100 children worldwide is diagnosed with autism. It is about four times more common in boys than in girls. In Türkiye, diagnosis rates have increased in recent years with the widespread use of screening programs. This does not mean autism has suddenly multiplied; rather, it shows that awareness among health professionals and families has risen, and screening tests are being used more effectively. Expanding early intervention programs plays a key role in integrating these children into society.

Causes and Risk Factors

Although the exact cause of autism is not yet fully understood, it is scientifically accepted that it emerges as a result of a complex interaction between genetic and environmental factors. A family history of autism is one of the strongest risk factors. If one child is diagnosed with autism, the likelihood of their siblings having the condition is higher than in the general population. Genetic mutations, chromosomal abnormalities, and certain hereditary syndromes are directly linked to autism.

Environmental factors include advanced maternal and paternal age, certain severe infections during pregnancy, premature birth, and low birth weight. However, claims that vaccines cause autism have been definitively debunked by countless large-scale scientific studies; there is absolutely no link between vaccines and autism. Certain high-risk medications used during pregnancy or severe folic acid deficiency are also examined as factors that may increase risks. It is of great importance for families to know that this is a neurodevelopmental process with biological foundations, without blaming themselves.

Autism Symptoms by Age Group

Although autism symptoms vary greatly from child to child, they generally concentrate in the areas of communication, social interaction, and behavior. Autism signs in babies can sometimes be noticed from the sixth month onward. The most striking finding in the early period is the baby's failure to make eye contact or making only limited eye contact. Sensory sensitivities may also accompany these symptoms; some children may overreact to sound, light, or touch.

• 6-12 Months: Not responding to smiles, lack of interest in peek-a-boo games, not looking when their name is called (especially after the 9th month).
• 12-18 Months: Not pointing at what they want with their index finger, lack of imitation skills like waving goodbye, not making meaningless sounds (babbling).
• 18-24 Months: Inability to form simple two-word sentences, lack of interest in peers, not playing with toys appropriately (e.g., spinning the wheels of a toy car for hours instead of driving it).
• Older Children: Overreacting to changes in routine, repetitive movements (stereotypies) like hand-flapping or spinning in circles, hyper-focusing on a specific topic.

In cases of atypical autism, some of these symptoms may be present while other developmental areas may progress completely normally. If you notice one or more of these signs in your child's development, you should consult a specialist without delay.

Diagnosis: How is it Diagnosed at the Hospital?

Autism Spectrum Disorder cannot be diagnosed with physical tests like blood work, X-rays, or brain MRIs. The diagnosis is made by a specialized child and adolescent psychiatrist through detailed observation of the child's behavior and evaluation of the developmental history provided by the family. When you visit the hospital, your doctor will examine how your child plays and how they communicate with you and their surroundings.

During the diagnostic process, internationally validated standardized developmental screening tests and autism evaluation scales are used. Additionally, a hearing test is always requested to understand whether hearing loss is causing the communication problems. When deemed necessary, an opinion from a pediatric neurologist may be sought to rule out a neurological issue, or genetic tests may be requested. The faster the early diagnosis process for autism works, the higher the child's chances of adapting to educational and social life. Professional evaluation is essential the moment a suspicion arises.

Treatment: Home Care and Hospital Treatments

There is no definitive medical cure or surgical solution for autism. The foundation of treatment consists of early and intensive special education programs tailored to the child's individual needs. It has been scientifically proven that children who receive at least 20-40 hours of structured education per week make significant progress in communication and social skills. Methods such as Applied Behavior Analysis (ABA), speech and language therapy, and occupational therapy are the main components of the treatment plan.

Play therapies and psychiatric follow-ups administered at the hospital support the child's emotional development, while medication can be prescribed under a doctor's supervision for accompanying issues like attention deficit, hyperactivity, sleep disorders, or anxiety disorders. The family's active participation in education during the home care process is highly critical. Organizing the home environment to suit the child's routines, using simple and clear commands, and utilizing visual support materials increase the child's daily life skills. Treatment is a lifelong journey and requires great patience.

Complications and Risk Groups

When left unaddressed, Autism Spectrum Disorder can severely limit a child's capacity to lead an independent life. Social isolation, academic failure, and difficulties in peer relationships are the most common problems. Especially when starting school, children with autism may be exposed to bullying due to their different behaviors. This requires families and teachers to be very vigilant regarding peer bullying.

Furthermore, medical complications such as epilepsy (seizures), gastrointestinal issues, sleep disorders, and food refusal are seen more frequently in individuals with autism than in the general population. With the transition to adolescence, young people who become more aware of their social differences face an increased risk of developing depression and anxiety disorders. Risk groups include premature babies, babies with low birth weight, and children with genetic syndromes. It is vital for pediatricians to monitor the developmental milestones of these children much more closely to catch any potential deviations early.

When to See a Doctor?

If you notice a regression at any stage of your child's development or think they are behaving differently from their peers, you should consult a child psychiatrist without waiting. Common cultural beliefs such as "He's a boy, boys talk late" or "He will grow out of it" can cause the vital window for early intervention to close.

• If your child is 6 months old but does not smile or show warm, joyful expressions,
• If there is no back-and-forth sharing of sounds, smiles, or facial expressions by 9 months,
• If they do not respond to their name, point, or wave by 12 months,
• If they are not speaking single words by 16 months,
• If they cannot form meaningful two-word sentences by 24 months,
• If they suddenly lose previously acquired speech or social skills at any age, do not waste time.

In emergencies such as a physical injury, having a seizure (convulsions, staring blankly at a single point), or showing a tendency toward severe self-harm, you should immediately call the 112 Emergency Call Center or visit the nearest hospital's emergency room.

The Process at BHT CLINIC

If you have concerns about your child's developmental process, we are by your side with our expert physicians in the Child Psychiatry department at BHT CLINIC İstanbul Tema Hastanesi. Bringing your child's previous health records and, if available, observation notes from daycare or school teachers on the day of your appointment will greatly contribute to the evaluation process. In our clinic, the mental development of children and adolescents aged 0-18 is meticulously monitored; personalized treatment plans are created alongside intelligence tests and play therapy in areas such as autism, attention deficit, and learning difficulties.

With our 24/7 emergency room and fully equipped pediatric units, we provide reliable healthcare services for all your medical needs. Knowing the life-saving role of early diagnosis, you can seek professional support without delay to support your child's development. To book an appointment, you can visit our website or reach us through our call center at 0850 811 34 00 at any time of the day.

Frequently Asked Questions

This article is for informational purposes only; please consult your physician for diagnosis and treatment.