Many other medical conditions may occur along with autism. These
comorbid conditions are also important in determining the diagnosis of
autism. The comorbid conditions may be used to indicate autism; however,
they do not have a direct effect in causing disabilities associated
with autism. Autism is firmly diagnosed as a cognitive disability that
starts in early childhood, continues through adulthood and has an effect
on the development of imaginative, communication and social interaction
skills.
Over 40 comorbidities have been associated with ASD. (Zafeiriou, Ververia, & Vargiamia, 2007) Some of the most common comorbid conditions are:
Anxiety Disorder
Anxiety disorders apart from those that are included in the autism disorders may occur, however it is difficult to say it is a comorbid anxiety problem.
Bipolar Disorder
Bipolar disorder is also known as manic depressive disorder. It may have other comorbid conditions in itself.
Bowel Disease
Gastrointestinal symptoms are known to affect a large percentage of children with autism. Constipation and inflammation of the intestines are among the common bowel diseases that are comorbid with autism disorders.
Depression and other Psychopathological Disorders
Various phobias, depression and some psychopathological disorders are known to occur with autism, though this has not been examined systematically.
Fragile X Syndrome
This has an effect on two to five percent of the population with autism. In this condition one component of the X chromosome is defective, and therefore looks fragile when viewed under a microscope. If a child has Fragile X, then there are high chances that his or her sibling will have Fragile X.
ADHD
Attention-deficit hyperactivity disorder (ADHD) may co-occur in children with autism. The co-diagnosis of ASD and ADHD is prohibited by the Diagnostic and Statistical Manual of Mental Disorders (4th edition). ADHD treatments are not very successful among children with ASD. Other kinds of medication and therapies are required for its treatment.
Mental Retardation
Some individuals with mental retardation are reported to also have autism.
Neuroinflammation and Immune Disorders
Many comorbid conditions connected to autism may be triggered by some immune disorders. Recent findings have shown that neuroinflammation and immune disorders are present in the brain and cerebrospinal fluid of some patients with ASD.
Non-Verbal Learning Disorder
This is typified by a considerable difference between greater verbal scores and lower performance scores in IQ tests. Disabilities related to motor, social and visual-spatial skill are also noticed.
Motor Clumsiness
Children with autism frequently have low levels of motor handiness and they acquire motor skills in a delayed period. Coordination may be poor which may affect their posture, handwriting, etc. Conceptual learning skills are also affected by this.
Obsessive Compulsive Disorder
Recurring obsessive thought and actions may affect a child with autism. These are stereotyped repetitive behaviors that are not essentially enjoyable.
Tourette Syndrome
Tourette syndrome affects 6.5% people with autism. It may occur due to genetic factors or serotonin, glutamate and dopamine abnormalities.
Seizures
Seizures occur in one in four children with autism. It is caused by irregular electrical action in the brain, which can cause short-term unconsciousness, staring spells and body convulsions.
Sensory Problems
Sensory problems apart from the sensory symptoms of autism may occur as a comorbid condition. For instance damaged tactile perception is known to affect children with autism more than adults. Related motor problems such as poor motor planning may also occur.
Tuberous Sclerosis
This is an uncommon genetic disorder that causes benign tumors in the brain and other vital organs. One to four percent of people with autism are known to have tuberous sclerosis. 25 to 61% people with tuberous sclerosis may be diagnosed with autism.
Over 40 comorbidities have been associated with ASD. (Zafeiriou, Ververia, & Vargiamia, 2007) Some of the most common comorbid conditions are:
Anxiety Disorder
Anxiety disorders apart from those that are included in the autism disorders may occur, however it is difficult to say it is a comorbid anxiety problem.
Bipolar Disorder
Bipolar disorder is also known as manic depressive disorder. It may have other comorbid conditions in itself.
Bowel Disease
Gastrointestinal symptoms are known to affect a large percentage of children with autism. Constipation and inflammation of the intestines are among the common bowel diseases that are comorbid with autism disorders.
Depression and other Psychopathological Disorders
Various phobias, depression and some psychopathological disorders are known to occur with autism, though this has not been examined systematically.
Fragile X Syndrome
This has an effect on two to five percent of the population with autism. In this condition one component of the X chromosome is defective, and therefore looks fragile when viewed under a microscope. If a child has Fragile X, then there are high chances that his or her sibling will have Fragile X.
ADHD
Attention-deficit hyperactivity disorder (ADHD) may co-occur in children with autism. The co-diagnosis of ASD and ADHD is prohibited by the Diagnostic and Statistical Manual of Mental Disorders (4th edition). ADHD treatments are not very successful among children with ASD. Other kinds of medication and therapies are required for its treatment.
Mental Retardation
Some individuals with mental retardation are reported to also have autism.
Neuroinflammation and Immune Disorders
Many comorbid conditions connected to autism may be triggered by some immune disorders. Recent findings have shown that neuroinflammation and immune disorders are present in the brain and cerebrospinal fluid of some patients with ASD.
Non-Verbal Learning Disorder
This is typified by a considerable difference between greater verbal scores and lower performance scores in IQ tests. Disabilities related to motor, social and visual-spatial skill are also noticed.
Motor Clumsiness
Children with autism frequently have low levels of motor handiness and they acquire motor skills in a delayed period. Coordination may be poor which may affect their posture, handwriting, etc. Conceptual learning skills are also affected by this.
Obsessive Compulsive Disorder
Recurring obsessive thought and actions may affect a child with autism. These are stereotyped repetitive behaviors that are not essentially enjoyable.
Tourette Syndrome
Tourette syndrome affects 6.5% people with autism. It may occur due to genetic factors or serotonin, glutamate and dopamine abnormalities.
Seizures
Seizures occur in one in four children with autism. It is caused by irregular electrical action in the brain, which can cause short-term unconsciousness, staring spells and body convulsions.
Sensory Problems
Sensory problems apart from the sensory symptoms of autism may occur as a comorbid condition. For instance damaged tactile perception is known to affect children with autism more than adults. Related motor problems such as poor motor planning may also occur.
Tuberous Sclerosis
This is an uncommon genetic disorder that causes benign tumors in the brain and other vital organs. One to four percent of people with autism are known to have tuberous sclerosis. 25 to 61% people with tuberous sclerosis may be diagnosed with autism.
References: Zafeiriou, D. I., Ververia, A., & Vargiamia, E.
(2007). Childhood autism and associated comorbidities. Brain and
Development, 29, 257-272.
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