Klinefelter syndrome - Wikipedia
Klinefelter syndrome (KS), also known as 47,XXY, is a chromosome anomaly where a male has an extra X chromosome. [10] These complications commonly include infertility and small, …
Klinefelter syndrome - Symptoms and causes - Mayo Clinic
2024年10月29日 · Klinefelter syndrome is a genetic condition that occurs before birth, but it often isn't diagnosed until adulthood. Klinefelter syndrome may affect testicular growth. This results …
Klinefelter Syndrome (XXY Syndrome) - WebMD
Klinefelter syndrome, also known as XXY syndrome, is a condition in boys and men that’s caused by an extra X chromosome. It can affect physical and mental development.
Klinefelter Syndrome: What It Is, Symptoms & Treatment
What is Klinefelter syndrome? Klinefelter syndrome is a genetic disorder in which males have an additional X chromosome in their genetic code. Most males have 46 chromosomes (packages …
Klinefelter syndrome: MedlinePlus Genetics
Klinefelter syndrome, also called 47,XXY, is a chromosomal condition that affects development in people who are assigned male at birth. The signs and symptoms of Klinefelter syndrome vary. …
XXY Syndrome: What It Is, Causes, Signs and Symptoms ...
2025年3月4日 · XXY syndrome, also known as Klinefelter syndrome (KS), is a genetic condition characterized by the presence of an extra X chromosome (47, XXY). Humans have 22 pairs of …
Klinefelter Syndrome - Johns Hopkins Medicine
Most men are born with a pair of XY chromosomes, while most females are born with pair of XX chromosomes. Klinefelter syndrome occurs when a male is born with an extra X chromosome. …