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In Intrauterine Insemination (IUI), sperm is injected directly into the uterine cavity around the time of ovulation. It is recommended as a treatment for several causes of infertility, especially if there is a problem with the sperm, such as low count or motility (slow movement).
It can be used together with ovarian stimulation to mature more eggs. It is also an option for cases when men cannot ejaculate inside the vagina (impotence, premature ejaculation or other medical causes). It may be carried out with the semen of the partner (IUI) or with the semen from a donor (IUI-D).
The semen is "washed" to separate the sperm
from the seminal fluid. This is done to prevent the seminal fluid from
entering the uterus, because it could irritate it, and we thus increase
the possibility for the sperm to fertilise the egg.
It is carried out via the uterine neck in the medical practice, using a very fine cannula. It only takes a few minutes.