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What is intrauterine insemination (IUI)?

The intrauterine insemination is a procedure in which the man’s sperm are washed, concentrated and injected via a thin catheter directly into the woman's uterus. Directed through the cervix, sperm are at their optimal concentrations between 5 and15 million.

In the ordinary sexual intercourse only part of the sperm manage to reach the female genital tract. By the intrauterine insemination the number of sperm in the woman’s fallopian tubes, where the fertilization takes place, considerably increases.

IUI is a preferred method in ART if the procedure is performed in compliance with the following facts:

  • Pregnancy by insemination is recommended to couples with unexplained infertility, having previously made unsuccessful attempts to conceive for at least one year. Such treatment is reasonable to be applied for maximum 3 to 6 months to women with spontaneous ovulation.
  • The intrauterine insemination can be carried out if the man’s sperm indicators are normal or also when man’s sperm motility and morphology are slightly reduced.
  • The intrauterine insemination should not be applied to women with blocked fallopian tubes. Therefore, tubal patency should be inspected by X-ray, called hysterosalpingography (HSG).
  • The intrauterine insemination has a very low success rate in women over 40 years of age, and in younger women with high levels of hormone FSH, tested on the third day of their cycle or via other indications for reduced ovarian reserve.

For the purposes of the insemination, instead of the sperm given by the woman’s partner, can be used donor’s sperm.
Some cases require a donor insemination to be carried out, in which is used quarantined donor sperm from an anonymous donor. In our country are applied special provisions governing the use of donor reproductive material.

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