What can blood tests show about male infertility?

If no sperm are being produced by the testes, a blood test at one of our clinics in Cambridge, Norwich, Wickford (or at one of our satellite clinics), could show whether that’s a result of a genetic condition or hormonal imbalance.

The most widely known genetic test is karyotype analysis. This looks at the size, number and shape of the chromosomes to rule out conditions such as Klinefelter syndrome, which is caused by an extra X chromosome. We would also recommend a Y chromosome microdeletion blood test. If a problem is detected with this chromosome, there is a chance it will be transferred to any male baby you may have, and this needs to be discussed. Both tests can be done at the same time.