ICSI Fertilization: what is ICSI and what does it consist of

The biologist Silvia Camacho, from the Ginefiv center, member of Top Doctors, explains what sperm microinjection consists of and what its advantages are.

What is sperm microinjection?

Intracytoplasmic sperm microinjection or ICSI is the most sophisticated variant of conventional in vitro fertilization. It consists of the injection of a spermatozoon into the cytoplasm of each egg. For this, biologists use a microscope equipped with a micromanipulation system.

Does the embryo incubation process change at all?

The treatment and incubation guidelines are the same as in a conventional IVF process, the only variation is that the laboratory process is more complex and requires more sophisticated technology. This technique, pioneered by Ginefiv in 1996, was a breakthrough in assisted reproduction since it made it possible to achieve high fertilization rates even in the most severe cases of male factor, in which it would not be possible to achieve these results with conventional in vitro fertilization.

When is it indicated?

Sperm Microinjection is especially indicated in cases of male infertility. Any male who is not azoospermic, which is the total absence of sperm, is a candidate for this procedure. The main advantage of this technique is that in most cases higher fertilization rates are achieved than with conventional in vitro fertilization.

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