Klinefelter’s Syndrome and Adults
Klinefelter’s Syndrome (KS) is a common congenital condition which is found in around 1 in 600 live male births and is caused by the presence of one or more additional sex chromosomes. Chromosomes are genetic material and males typically have one X and one Y chromosome (XY) and females have two X chromosomes (XX). Klinefelter’s Syndrome is characterised by the presence of an additional chromosome (XXY).
KS is diagnosed by a blood test which identifies the karyotype i.e. the number, size and shape of the chromosomes.
You may find this podcast useful which provides an overview of the condition
- An Introduction to Klinefelter’s Syndrome
- Klinefelter’s Syndrome or XXY
- Scientific Background
- Health Issues
- Common Symptoms
- Fertility Options
- Gender Issues
- Informed Consent
- The Future
- Helpful links for KSA Members
If you would like to talk to someone please call our Helpline: 0300 111 47 48.
Please remember that as the KSA is run entirely by volunteers, sometimes there may not be anyone available to take your call. Please leave a message with your email address or phone number (landline, if possible) and we will get back to you.