(Original)ICSI (ICSI - IntraCytoplasmic Sperm Injection, lit. introduction of a sperm into the cytoplasm, intracytoplasmic sperm injection) is a method of infertility treatment, one of the auxiliary methods of artificial insemination (IVF).
There are two ways to fertilize an egg using IVF: traditional and ICSI. With traditional IVF, 50,000 or more swimming spermatozoa are placed next to the egg in a laboratory container. Fertilization occurs when one of the sperm enters the cytoplasm of the egg. In the ICSI process, a tiny needle called a micropipette is used to inject a single sperm into the center of the egg. In traditional IVF or ICSI, as soon as fertilization occurs, the fertilized egg (now called an embryo) grows in the laboratory for 1-5 days before it is transferred to the woman's uterus.
What is ICSI for?
ICSI helps to overcome problems with fertilization, for example:
* The male partner produces too little sperm for artificial insemination (intrauterine insemination) or IVF.
* Spermatozoa may not move normally.
* Spermatozoa may have problems attaching to the egg.
* Eggs are not fertilized using traditional IVF, regardless of the quality of the sperm.
* Using mature eggs in vitro.
* Previously frozen eggs are used.
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