All about Syndromes
All about Syndromes What is Klinefelter syndrome? Klinefelter syndrome is a genetic disorder in which males have an additional X chromosome in their genetic code. Most males have 46 chromosomes (packages of DNA). This includes one copy of an X chromosome and one copy of a Y chromosome (46, XY). People with Klinefelter syndrome have a total of 47 chromosomes (47, XXY). What are the symptoms of Klinefelter syndrome? The symptoms of Klinefelter syndrome vary in severity. Some people have several symptoms, while others don’t have any obvious ones. There are two general types of symptoms — physical and neurological. Physical Klinefelter syndrome symptoms Physical symptoms of Klinefelter syndrome affect your body and how it works. These symptoms may include: A smaller penis. Undescended testicles. Atypical body proportions (like being really tall or having long legs and a short trunk). Flat feet. Radioulnar synostosis (when there’s an abnormal connection between the two main...