Intrauterine insemination

Intrauterine insemination (IUI) is a low-complexity assisted reproduction technique that consists of placing previously capacitated sperm directly inside the uterus, synchronized with the ovulation moment to increase the chances of pregnancy.

Book an IUI assessment

How is the procedure performed?

After controlled ovarian stimulation and ultrasound monitoring, on the day of ovulation a seminal sample is processed in the lab to concentrate and improve the quality of motile sperm. The capacitated sample is introduced into the uterine cavity through a very thin cannula, in an outpatient procedure that lasts a few minutes.

Most common indications

IUI is usually recommended in these situations:

Mild to moderate male factor (slight alterations in concentration or motility).
Ovulatory dysfunction requiring controlled pharmacological support.
Failed timed intercourse in one or two prior cycles with a good prognosis.
Unexplained infertility with preserved tubal patency.
Cervix with cervical factor or unfavorable mucus.

When is it time to switch to IVF?

Age, ovarian reserve, seminal analysis quality, tubal patency and number of previous attempts are evaluated. Usually, after 3 to 4 IUI cycles without success, or when a factor that lowers prognosis appears (age over 38, low reserve, severe male factor), the path toward in vitro fertilization is reconsidered.

Frequently asked

Most common IUI questions

Is it painful?

The procedure itself is usually painless or very similar to a Pap test. Some patients report mild cramping when the cannula is introduced, but it is brief and does not require anesthesia.

How many IUI cycles are recommended?

The standard is between 3 and 4 cycles. If pregnancy is not achieved after that number, the strategy is reassessed based on prognosis and age to decide whether to continue or move to IVF.

What is the success rate?

Pregnancy rates per cycle vary between 10% and 20%, depending on age, male factor and response to ovarian stimulation. In consultation we review your individual case to give realistic expectations.

Explore other paths

Complement your route with services or surgeries

In addition to assisted reproduction, you can rely on clinical consultation or gynecologic procedures according to your diagnosis and goals.

Do you want to know which route fits your case best?

Book by WhatsApp

Patient reviews on Google

Dr. Eunice is fantastic. She is a dedicated gynecologist, very experienced and thorough. She performed a very professional exam and inserted my IUD. I felt completely comfortable and relaxed; she took the time to answer my questions and make me feel at ease.

Melissa Brock Google Maps

Dr. Eunice is incredibly attentive from the moment she welcomes you. She explains every detail patiently and gives each patient her full attention. Her clinic is beautiful and very clean. I highly recommend her, especially if you are looking for a comfortable environment.

Samara Loza Google Maps

I have consulted with her once and can say she is very dedicated to her work. She listens well and explains everything with total clarity. She is very patient, which builds trust. The facilities are excellent. I am very satisfied with her work and care.

Maria Ines Ascanio Google Maps

Dr. Eunice Zavala was very attentive and respectful, provided precise details about the exam and answered all of my questions. Her clinic is lovely and comfortable. I highly recommend her.

Andrea de Leon Google Maps

Excellent service; the doctor is very professional, very kind and truly cares about her patients. She takes enough time to resolve every question during appointments and even the doubts that come up afterward.

Cristina Moreno Google Maps