Certified Medical Magazine by WMA, ACSA, HON
FAQs
0
Menu

What is the difference between ICSI and IUI?

By Zaira Salvador.
Last Update: 04/24/2018

IUI (intrauterine insemination) is the simplest of all fertility treatments, while ICSI is way more complex, as it is a more direct approach at egg fertilization.

With IUI, the sperm is placed inside the uterine cavity and allowed to move forward by themselves toward the oocyte. Broadly speaking, they penetrate it under their own "power".

Conversely, with ICSI there is no need for the sperms to travel through the vaginal cavity by themselves, as a spermatozoon is injected directly into the oocyte, which causes fertilization to occur artificially.

Another difference is that ICSI occurs outside the female body, after egg retrieval. In the case of IUI, the process of fertilization and egg insemination occurs as it would occur naturally inside the woman's reproductive system.

Suggested for you: What Is ICSI Technique? – Process, Success Rates & Cost.

 Zaira Salvador
Zaira Salvador
BSc, MSc
Embryologist
Bachelor's Degree in Biotechnology from the Technical University of Valencia (UPV). Biotechnology Degree from the National University of Ireland en Galway (NUIG) and embryologist specializing in Assisted Reproduction, with a Master's Degree in Biotechnology of Human Reproduction from the University of Valencia (UV) and the Valencian Infertility Institute (IVI)
License: 3185-CV
Embryologist. Bachelor's Degree in Biotechnology from the Technical University of Valencia (UPV). Biotechnology Degree from the National University of Ireland en Galway (NUIG) and embryologist specializing in Assisted Reproduction, with a Master's Degree in Biotechnology of Human Reproduction from the University of Valencia (UV) and the Valencian Infertility Institute (IVI) License: 3185-CV.
We use own cookies and third party cookies to offer you personalized ads and gather statistical data. If you continue the navigation we understand that you accept our cookies policy.