Klinefelter syndrome is a group of chromosomal disorders in males in which one or more extra X chromosomes are present. Males with the classic form of the disorder have one extra X chromosome. Males with variant forms of Klinefelter syndrome have additional X and/or Y chromosomes. The extra X and/or Y chromosome can effect physical and intellectual development. Common physical features may include small testes (hypogonadism), , delayed pubertal development, and breast development (gynecomastia) in late puberty. These features may be associated with low testosterone level and elevated gonadotropin levels.
Most effective Klinefelter Syndrome treatments reported by our members
No treatments have been listed
Most severe Klinefelter Syndrome symptoms reported by our members
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