Intra-Uterine Insemination

Intrauterine Insemination (IUI) is the simplest of the Assisted Reproductive Technology techniques and consists of placing the sperm inside the uterus through a small catheter.

In the IUI cycle, a controlled induction of ovulation is performed through oral or injectable medication. The sperm is prepared in the laboratory, allowing to select the best sperm that is placed inside the uterus at the time of ovulation.

It is indicated in couples who presents male light infertility, incompatibility between the cervical- mucus and the sperm and in situations with no apparent cause.
It is also the first-line technique when it is necessary to resort to donor sperm in women with permeable tubes.

Procedure stages:

Medical Appointment

Assessment of the patient condition and establishment for medical treatment.


Administration of drugs for ovarian stimulation and ultrasound control 2/3 times, to measure the number and size of the follicles.
When the follicles reach the desired size, the procedure is scheduled and an hCG injection is required for induction of oocyte maturation about 36 hours earlier.

Sperm Collection

Sperm collection is done.
Donor sperm can also be used in the indicated cases.

Spermatozoa Selection

Spermatozoa are prepared and selected taking into account mobility and morphology.

Pregnancy test

Blood analysis (βhCG) is performed to confirm pregnancy.


Efficacy of the technique performed.