Frequent question: What happens if you have an XXY chromosome?

As XXY males enter puberty, they often don’t make as much testosterone as other boys. This can lead to a taller, less muscular body, less facial and body hair, and broader hips than other boys. As teens, XXY males may have larger breasts, weaker bones, and a lower energy level than other boys.

What gender is an XXY chromosome?

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.

CAN XXY have babies?

It is possible that an XXY male could get a woman pregnant naturally. Although sperm are found in more than 50% of men with KS3, low sperm production could make conception very difficult.

How do you get XXY chromosomes?

Klinefelter syndrome can be caused by:

  1. One extra copy of the X chromosome in each cell (XXY), the most common cause.
  2. An extra X chromosome in some of the cells (mosaic Klinefelter syndrome), with fewer symptoms.
  3. More than one extra copy of the X chromosome, which is rare and results in a severe form.

Are XXY males infertile?

Between 95% and 99% of XXY men are infertile because they do not produce enough sperm to fertilize an egg naturally. But, sperm are found in more than 50% of men with KS.

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What is the difference between XXY and XYY?

Despite having fewer learning and language problems than the 47,XXY group, males with 47,XYY have been reported to be more disruptive and impulsive, which greatly interferes with their learning skills. Males with 47,XXY are typically shy and withdrawn compared to 47,XYY.

Should I be worried about Klinefelter syndrome?

If you’re worried about your son’s emotional or physical development, talk to your doctor. Occasionally, symptoms like these can be linked to a condition called Klinefelter syndrome.

Can people with Klinefelter’s have kids?

The vast majority of men with Klinefelter syndrome are infertile and can’t father a child the usual way. Options for becoming natural parents are limited, but fertility researchers are working on new treatments.

What age is Klinefelter syndrome diagnosed?

Klinefelter syndrome usually is not diagnosed until the time of puberty. At this point, the boy’s testicles fail to grow, and you may start to notice other symptoms.

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