Permitted number of embryos IVF/ICSI
In IVF/ICSI the number of embryos that can be transferred per cycle is restricted by Belgian law.
The aim of this restriction to limit the number of multiple pregnancies as much as possible. This is because a multiple pregnancy implies an increased risk for mother and babies.
This limitation applies for all women having ART treatment in Belgium.
| IVF cycle |
with fresh embryos
| before your 36th birthday |
| from age 36 and |
before your 40th birthday
| from age 40 and |
before your 48th birthday
| 1st cycle |
| max. 1 embryo |
| max. 1 embryo || not restricted by law |
| 2nd cycle |
| max. 1 embryo (*) |
| max. 2 embryos || not restricted by law |
| from 3rd cycle onwards |
| max. 2 embryos || max. 3 embryos || not restricted by law |
| Transfer with thawed embryos |
| always maximum 2 embryos (**) |
(*) Under certain criteria, the transfer of two embryos will be permitted - depending on the quality.
(**) (**) In case of FRET maximum two embryos can be transferred, regardless of your age or the number of cycles involved. The decision on one or two embryos is taken in accordance with the medical guidelines of the CRG.