How is Klinefelter's Syndrome tested for? Klinefelter's syndrome can be diagnosed by a chromosome analysis, which is available through an in person genetic consolation for people who are considered at risk. What we did to find out what your son has is take DNA samples from your son's bone and muscle. We found two X chromosomes and one Y chromosome. There is two cases where this can occur. Either the male sperm can be carrying an X chromosome with it once it penetrates the egg, or the egg can already have an extra X chromosome inside it. Klinefelter's is more common in the elderly and malnourished. |
 Two cases where Kilefelter's syndrome will occur. |
