A boy with delayed cognitive development may require detailed endocrine hormone and genetic inheritance checks, and medical treatment is an important option.

Down syndrome is caused by chromosomal abnormalities and is related to the mother’s age, particularly common in elderly pregnant women.

This article provides information on surgical treatment for polydactyly.

If both parents have double eyelids but their child has monolid eyes, what are the possible reasons and is there a chance for the child to develop into double eyelids as they grow older?