Klinefelter syndrome is a chromosomal condition in boys and men that can affect physical and intellectual development. Most commonly, affected individuals are taller than average are unable to father biological children (infertile); however the signs and symptoms of Klinefelter syndrome vary among boys and men with this condition. In some cases. Klinefelter syndrome is a genetic disorder that doesn’t have a cure, but most men who have it can live normal, healthy lives. Learn the causes, symptoms, and treatments.
Overview. Klinefelter syndrome is a genetic condition that results when a boy is born with an extra copy of the X chromosome. Klinefelter syndrome is a common genetic condition affecting males, and it often isn't diagnosed until adulthood. Klinefelter syndrome is a trisomy condition, referring to a condition in which three, rather than two of the autosomal chromosomes or sex chromosomes are present. Instead of having 46 chromosomes, those who have a trisomy have 47 chromosomes (though there are other possibilities with Klinefelter syndrome discussed below.).
Klinefelter's Syndrome: Klinefelter's syndrome, also known as 47,XXY or XXY syndrome is a genetic abnormality in which boys and men have an extra X sex chromosome. This means men show a pattern of XXY in their sex chromosomes instead of XY. (This is not the same as XYY syndrome.). Males who have Klinefelter syndrome may have the following symptoms: small, firm testes, a small penis, sparse pubic, armpit and facial hair, enlarged breasts (called gynecomastia), tall stature, and abnormal body proportions (long legs, short trunk).
Klinefelter syndrome is a fairly common genetic condition found in males only. Many boys with Klinefelter syndrome — also known as XXY syndrome — have no signs or symptoms, and some don't even know they have it until later in life. The XXY condition that causes Klinefelter syndrome can't be. Feb 14, 2018 · Klinefelter syndrome (KS) is a condition that occurs in males when they have an extra X chromosome.Some males with KS have no obvious signs or symptoms while others may have varying degrees of cognitive, social, behavioral, and learning difficulties.