Would you like to know the gender of your baby during the 8th pregnancy week?


At GIREXX Clinic, through a simple blood test you can know the gender of your baby in only 24 hours.

 Modern investigations show that from the 5th week of pregnancy onwards there is foetal DNA in the mother’s plasma in a proportion of 3% to 5% (Lo. The Lancelet, 1977) and this presence is indetectable 2 hours after the delivery (Honda et al. Cancer 2001). This test opens new ways for non-invasive prenatal diagnosis without entailing any risks for the foetus, nor for the mother.

Foetal DNA can be detected using a technique called RT-PCR with which a DNA fragment of the Y chromosome can be identified. If this identification takes place, the foetus is male, if not, it is female.

The result of the test can be given 2 days after obtaining the blood sample.

Foetal gender determination is important in Y chromosome-linked hereditary diseases such as haemophilia, Duchenne muscular dystrophy, …

Frequently asked questions:

What other tests can determine the foetal gender?

The other tests to determine the foetal gender are more invasive and can only be performed later. The first one is chorionic villus biopsy which can be performed during the 11th-12th week of pregnancy and provides a foetal chromosomal analysis (karyotype). The second one is amniocentesis which can be performed from the 14th pregnancy week onwards and which also determines the foetal gender through a chromosomal analysis (karyotype). Conventional ultrasound scan can determine the gender through direct visualisation of the genital organs from the 14th-15th pregnancy week onwards but it very much depends on foetal position during the scan.


What is the reliability of this test?

If the blood sample is analysed within the next 48 hours after obtaining it and the patient is at least in her 8th pregnancy week, the reliability of the test is more than 98%.

If I’m pregnant with twins, the reliability of the test is the same?

In case of multiple pregnancies, the tests indicates if at least there is one male foetus or if both are female as the DNA from both foetuses mix in the mother’s blood. If male DNA is detected it is impossible to establish whether one foetus is male and the other female or if they are both male.

Is it necessary to have an empty stomach for the test?

No, it is not necessary when obtaining the blood sample.

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