Question

My 10-month-old grandson has been diagnosed with duplicate X chromosomes. What does this mean?

Luna Rose Top Answerer

People with XXY chromosomes are known as having "Klinefelter Syndrome." Your grandson will likely be sterile as an adult. (Don't worry: if he wants to be a father, he can adopt.) Klinefelter Syndrome symptoms are sometimes minor, and sometimes more noticeable. He may experience symptoms like poor coordination, taller height, reduced strength, less body hair, speech disorders and difficulty reading. He may or may not have some developmental delays. He may benefit from seeing an occupational therapist to help out with areas where he struggles. Hormonal therapy will be an option during teen years and later. Most XXY boys can grow up to lead healthy and happy lives.