• * The center of assisted medical procreation of the CHU St Pierre is specialised in reproductive medicine. Reference center: quality label ISO 9001 obtained in 2008 and accredited by the AFMPS (Agence Fédérale des Médicaments et Produits de Santé).

Ultrasound-guided transvaginal oocyte retrieval is carried out in an operating theatre using a needle. 


Oocyte retrieval 

The oocyte is found in small vesicles resembling a black circle in the ultrasound scan and containing a fluid known as follicular fluid. It is this fluid that is retrieved by the gynaecologist and given to the embryologist. This specialist checks the presence of an oocyte and informs the gynaecologist who will endeavour to detach it by repeatedly rinsing it.


The collected oocytes are placed in a suitable culture medium in an incubator at 37°C. They will remain there until fertilization by classic IVF or by ICSI.



3 oocytes with their cumulus cells upon retrieval



1 oocyte surrounded by granulosa



Plan du site CHU Saint Pierre - Bâtiment 200, 5è étage . Département de Gynécologie-Obstétrique

Centre de Fécondation In vitro - 322, Rue Haute - Bruxelles Tel +32(0)2 535 3406 Fax +32(0)2 535 3409