Pregnant women should practice safe sex and use condoms to reduce the risk of exposure. Usually this is when signs of learning disabilities or intellectual disability surface. Doctors have found many causes of intellectual disabilities. Causes of intellectual disability are numerous, and specific causes may be unknown in many cases. Pregnant women should practice safe sex and use condoms to reduce the risk of exposure. Other O- Other infections , including Hepatitis B, syphilis, and the virus herpes zoster, that causes chicken pox. Failure to adapt normally and grow intellectually may become apparent early in life or, in … Genetic causes of intellectual disability cannot be considered preventable. Signs and symptoms of intellectual disability in children and teens. • Problems during pregnancy - Use of alcohol or drugs by the pregnant mother can cause intellectual dis-ability. There are many genetic causes of intellectual disability. Lastly, certain psychiatric conditions are associated with intellectual disabilities. What Causes an Intellectual Disability? The causes of intellectual disability are often grouped according to the time of their occurrence. The acronym “IDD” is used to describe a group that includes either people with both ID and another DD or a group that includes people with ID or another DD. Such a taxonomic grouping of causes might be … The most common are: Genetic conditions. Sometimes an intellectual disability is caused by abnormal genes inherited from parents, errors when genes combine, or other reasons. The two most common are Down syndrome and fragile X syndrome. intellectual and developmental disabilities. (1) It affects approximately 1% to 3% of the population. The most common DD conditions are intellectual disability, Down syndrome, autism, cerebral palsy, spina bifida, fetal alcohol syndrome, and fragile X syndrome. Children who have a sibling with autism are at a higher risk of also having autism spectrum disorder. intellectual disability. The most common disorder is called autism spectrum disorder (ASD). The signs and symptoms of intellectual disability will vary tremendously from person to person depending upon the severity of the disability, the underlying cause for the disability, the implementation of appropriate interventions, and co-occurring disorders. 1- Prenatal Causes for Intellectual Disability: As it can be understood by the name, prenatal causes are the factors that cause intellectual disability in the mother's womb. Recent research has implicated smoking in increasing the risk of intellectual disability. Usually this is when signs of learning disabilities or intellectual disability surface. Causes of intellectual and developmental disabilities have traditionally been divided into two categories: biological (or physiological) and environmental (or psychological and sociological). 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