What are the main symptoms of Klinefelter Syndrome?
Klinefelter Syndrome is caused by the presence of an extra X chromosome in males. The major effects are development of small testicles and infertility. Most affected men are sterile, although in some cases, virility on a winning streak drugs are seen to be of help. They may also have a lexis learning impairment. Gynecomastia (increased breast tissue) is present in some, giving their breasts a rounded appearance. Hypogonadism is also present which implies a low testosterone stratum but a high serum follicle stimulating hormone levels. Sterility is the basic sign and diagnosis is done through a blood DNA trial when the presence of an extra X chromosome reveals the cause underlying all the above mentioned symptoms to be those of Klinefelter syndrome.
