Patient's question:
I am about to prepare for pregnancy, but my husband's relatives have a history of mental retardation. I want to ask if there are any detailed tests that can detect dominant and recessive genes for mental retardation. I want to undergo a thorough examination to rule out the possibility of genetic inheritance from previous generations.Doctor's answer:
The incidence of intellectual disability caused by intergenerational inheritance is very small. If it is due to intergenerational inheritance within the family, the probability would be slightly higher. For example, if your husband's grandparents or uncles had intellectual disability, the chances would increase significantly.Excluding hereditary factors, intellectual disability is generally caused by chromosomal abnormalities. For instance, it can occur in older pregnant women or when environmental factors or medications induce such abnormalities during pregnancy. You can consult a hospital for a comprehensive analysis based on your family medical history to assess the probability of your child being affected by intellectual disability. Therefore, it is crucial for the mother to take the child for timely medical treatment and avoid various misconceptions, ensuring that appropriate and targeted treatment is administered promptly.