Question

What is the probability of intergenerational transmission of intellectual disability? I want to carefully check and exclude the factors of intergenerational transmission.

Answer

The proportion of intellectual disability caused by intergenerational genetic transmission is very small, and it would be slightly higher if there is family intergenerational transmission. Excluding familial factors, intellectual disability is generally caused by chromosomal mutations. You can go to the hospital and have a systematic analysis based on your family medical history to measure the probability of your child being troubled by intellectual disability.