Autism, often known as an autism spectrum disorder (ASD), is a complex illness characterized by communication and behavioral issues. It might include a wide variety of symptoms and abilities. ASD might be a small issue or a handicap requiring full-time care in a specialized institution.
Autism symptoms typically show around the age of two or three. Some developmental delays might emerge much sooner, and it is frequently known as early as 18 months. Early intervention, according to research, leads to better results for persons with autism later in life.
Causes
Having an autistic direct family member specific genetic variant
Fragile X syndrome and associated genetic conditions
Being the child of elderly parents
Metabolic abnormalities caused by low birth weight
Heavy metal and environmental contaminant exposure
A history of viral infections in the mother
Exposure of the fetus to the drugs valproate or thalidomide
Signs and Symptoms
Social communication and social interaction
Avoids or does not look people in the eye by 9 months of age
Does not respond to name by 9 months of age
Does not show facial gestures like happy, sad, angry, and surprised by 9 months of age
Does not play simple interactive games such as pat-a-cake by 12 months of age
Uses little or no gestures by 12 months of age (e.g., does not wave goodbye)
Does not consider sharing interests with others (e.g., shows you an object that he or she like
Restrictive or repetitive behavior
Lines up toys or other things and becomes angry when the order is altered
Repeats words or phrases over and again (i.e., echolalia)
Play with a toy, in the same manner,r every time
Lines up toys or other things and becomes angry when the order is altered
Repeats words or phrases over and again (i.e., echolalia)
Repeats words or phrases over and over (i.e., echolalia)
Plays with toys the same way every time
Is concentrated on portions of items (e.g., wheels)
Gets upset by little changes
Has obsessive hobbies
Has odd reactions to the way things sound, smell, taste, loo, or feel
Claps handshakes body or spins in circles
Has odd reactions to the way things sound, smell, taste, look
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