Klinefelter Syndrome
Klinefelter Syndrome (KS), also known as 47,XXY, is a common chromosomal disorder in males, characterized by the presence of an extra X chromosome, leading to symptoms such as infertility, small testes with reduced testosterone production, learning disabilities, and coordination issues. Named after endocrinologist Harry Klinefelter, who identified the condition in the 1940s, it affects approximately one to two per 1,000 live births and symptoms often become apparent during puberty.
Health Outcomes
- Changed Gonadal Hormone Level
- Changed Testosterone Level
- Impaired Spermatogenesis
- Improved Spermatogenesis
- Increased Body Length
- Increased Follicle-Stimulating Hormone Level
- Increased Height
- Increased LH Level
- Increased Luteinizing Hormone Level
- Increased Testosterone Production
- Reduced Androstenedione Level
- Reduced Gonadal Development Defects
- Reduced Reproductive Function
- Reduced Total Testosterone Level
- Stable Androgen Levels