What happens when a male has an XXY?

Klinefelter syndrome may adversely affect testicular growth, resulting in smaller than normal testicles, which can lead to lower production of testosterone. The syndrome may also cause reduced muscle mass, reduced body and facial hair, and enlarged breast tissue.

Is an XXY person male or female?

Usually, a female baby has 2 X chromosomes (XX) and a male has 1 X and 1 Y (XY). But in Klinefelter syndrome, a boy is born with an extra copy of the X chromosome (XXY). The X chromosome is not a “female” chromosome and is present in everyone. The presence of a Y chromosome denotes male sex.

What is XXY male syndrome?

Klinefelter syndrome is a genetic condition in which a boy is born with an extra X chromosome. Instead of the typical XY chromosomes in men, they have XXY, so this condition is sometimes called XXY syndrome. Men with Klinefelter usually don’t know they have it until they run into problems trying to have a child.

Why is XXY considered male?

A person’s biological sex is determined by the sex chromosomes: females have two X chromosomes, or XX; most males have one X chromosome and one Y chromosome, or XY. Males with XXY syndrome are born with cells that have an extra X chromosome, or XXY.

CAN XXY be female?

Generally, individuals possessing 47, XXY karyotype have male phenotype. However, in the present case in spite of the presence of Y chromosome and the normal SRY, SOX9, and ZFY genes, the individual has a female phenotype.

Can you be short with Klinefelter syndrome?

Although one of the most characteristic features of Klinefelter syndrome is tall stature, some uncommon variants are associated with short stature (49 XXXXY, isochromosome Xq) [3–5].

Can a short person have Klinefelter syndrome?

Three main clinical signs should suggest the diagnosis in a child: small testes, tall stature, and mental retardation or learning problems. We present a patient with Klinefelter syndrome and short stature due to growth hormone deficiency. His height was below the third percentile for age and his bone age delayed.

What is the life expectancy of someone with Klinefelter syndrome?

According to SyndromesPedia, those with Turner’s syndrome have a typical reduction of life expectancy of 13 years. Most women with the condition live until 50 years of age.

What are some interesting facts about Klinefelter syndrome?

Klinefelter syndrome facts*. Klinefelter syndrome,also known as the XXY condition,is a term used to describe males who have an extra X chromosome in most of their cells.

What causes Klinefelter syndrome?

Causes of Klinefelter syndrome. Klinefelter syndrome is caused by an additional X chromosome. This chromosome carries extra copies of genes, which interfere with the development of the testicles and mean they produce less testosterone (male sex hormone) than usual.

What gender is Klinefelter syndrome?

What Is Klinefelter Syndrome? Klinefelter syndrome is a genetic condition in which a boy is born with an extra X chromosome. Instead of the typical XY chromosomes in men, they have XXY, so this condition is sometimes called XXY syndrome. Men with Klinefelter usually don’t know they have it until they run into problems trying to have a child.