What is the treatment for klinefelter's syndrome?

Not possible. Klinefelter's is a chromosomal condition in which an extra x is found in the chromosomes of the person who has it. It generally cause some degree of infertility, and changes in the bodily structure. The lifespan and mental function are usually normal. There is no treatment. Variants include xxy, xxxy, xxxxy. All having an excess of x chromosomes.