Q98: Other sex chromosome abnormalities, male phenotype, not elsewhere classified

Q98.5: Karyotype 47,XYY

When beginning its development, every single cell in the body contains a complete blueprint of the body. This blueprint consists of genetic information. The genetic information is encrypted in the chromosomes. Every human cell normally contains 23 chromosome pairs, i.e. a total of 46 chromosomes.

The X chromosome and the Y chromosome determine a person’s biological gender. Men normally have one X chromosome and one Y chromosome. Women normally have 2 X chromosomes.

You have 1 X chromosome and 2 Y chromosomes and have male sexual characteristics.

If you have one X chromosome and 2 Y chromosomes, you can have special characteristics of the face. These include low set ears. You may also be especially tall. You may additionally have problems with speaking and movement. There may also be mental symptoms.