CAN XXY have babies?
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 does a person with Klinefelter syndrome look like?
Boys with Klinefelter syndrome might have some or all of these physical signs: a taller, less muscular body than other boys their age. broader hips and longer legs and arms. larger breasts (gynecomastia)
Who is most likely to get Klinefelter syndrome?
Klinefelter syndrome results when a boy is born with at least 1 extra X chromosome. This is written as XXY. Klinefelter syndrome occurs in about 1 out of 500 to 1,000 baby boys. Women who get pregnant after age 35 are slightly more likely to have a boy with this syndrome than younger women.
Can a girl have Klinefelter’s syndrome?
Klinefelter syndrome (47,XXY) results from an additional X chromosome on an XY background; therefore, this condition affects only males.
What is Noonan syndrome?
Noonan syndrome is a genetic disorder that prevents normal development in various parts of the body. A person can be affected by Noonan syndrome in a wide variety of ways. These include unusual facial characteristics, short stature, heart defects, other physical problems and possible developmental delays.
What is the gender of a person with XXY?
A person’s physical gender (whether they have male or female sex organs) 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 Klinefelter syndrome are born with cells that have an extra X chromosome, or XXY.
What is the survival rate of Klinefelter syndrome?
We found that Klinefelter syndrome was associated with a significant increase in mortality risk of 40% (hazard ratio, 1.40; 95% confidence interval, 1.13–1.74), corresponding to a significantly reduced median survival of 2.1 yr.