Intracytoplasmic Sperm Injection: A Revolution in Reproductive Medicine for Treating Male Infertility

Image of the authorwritten by Philomena Marx9 January 2025
Intracytoplasmic Sperm Injection (ICSI)

Thanks to modern reproductive medicine, there are now numerous options available to help couples with fertility issues. Intracytoplasmic Sperm Injection (ICSI) is a particularly effective method for treating male infertility. Below, Intracervical Insemination (ICI) and ICSI are briefly compared, the typical ICSI procedure is explained, and an alternative called RattleStork is explored.

ICSI: Definition and Importance in Reproductive Medicine

Intracytoplasmic Sperm Injection (ICSI) is a highly precise technique in reproductive medicine specifically developed to treat male infertility. A single sperm is injected directly into a mature egg under a microscope. This targeted procedure can treat cases where sperm count is very low, motility is severely restricted, or sperm morphology is significantly abnormal.

This direct injection is considered a milestone and has revolutionised reproductive medicine. Even in severe fertility issues where conventional methods (e.g., IVF without micromanipulation) fail, it provides couples with new chances for successful fertilisation and pregnancy.

ICI vs. ICSI: Main Differences and Applications

Both Intracervical Insemination (ICI) and Intracytoplasmic Sperm Injection (ICSI) aim to achieve fertilisation. However, the two procedures fundamentally differ:

  • Site of Insemination: In Intracervical Insemination (ICI), the sperm is injected into the cervix or its vicinity. In contrast, ICSI involves fertilisation directly within the egg.
  • Fertilisation Method: ICI relies on the natural fusion process of sperm and egg within the body. ICSI, on the other hand, manually introduces a single sperm into the egg.
  • Application Area: ICI is suitable for less complex cases where there are still enough healthy sperm. ICSI is particularly used in cases of severe male infertility or significantly reduced sperm quality.

In summary, ICI is suitable for milder fertility issues, while ICSI provides an effective solution for more complex causes of male infertility.

ICSI Procedure: Step-by-Step Guide

Intracytoplasmic Sperm Injection (ICSI) is a highly specialised process that involves several carefully planned steps:

  1. Preliminary Examinations and Counselling: Both partners undergo comprehensive examinations to determine the causes of infertility (blood tests, hormone analyses, ultrasounds). Following this, an in-depth counselling session discusses the procedure.
  2. Ovarian Stimulation (Hormonal Stimulation): The woman receives medications to promote the development of multiple eggs in the ovaries. Progress is monitored through ultrasounds and blood tests.
  3. Egg Retrieval: Once the eggs are sufficiently mature, they are retrieved under sedation or general anaesthesia and brought directly to the laboratory.
  4. Sperm Retrieval: Almost simultaneously, a semen sample is collected from the male partner or sperm donor. If there is not enough sperm in the ejaculate, a testicular biopsy may be performed.
  5. Sperm Preparation: The semen sample is processed in the laboratory, selecting the healthiest and most motile sperm.
  6. Sperm Injection: Under a microscope, a single selected sperm is injected into each egg. This step requires great precision and expertise.
  7. Fertilisation Observation: The fertilised eggs are cultured in an incubator for several days. Their development is closely monitored to select the most viable embryos.
  8. Embryo Transfer: After successful fertilisation and several days of development, the most suitable embryos are transferred into the woman's uterus.
  9. Pregnancy Test: Approximately two weeks after the embryo transfer, a blood or urine test is conducted to check for pregnancy.
  10. Pregnancy and Birth: If pregnancy is achieved, the woman receives close medical monitoring until birth.

Each of these steps is meticulously monitored and optimised to maximise the chances of successful treatment.

Alternative: RattleStork

For couples or individuals seeking alternative methods for starting a family, RattleStork offers a flexible and modern solution. This platform allows direct interaction with potential sperm donors, enabling a private and personalised approach to fulfilling the desire for children.

RattleStork.org – the Sperm Donation App
Figure: RattleStork.org – the Sperm Donation App

Conclusion: ICSI as an Effective Solution for Male Infertility

ICSI provides an effective solution for couples dealing with male infertility, especially in cases of severely reduced sperm quality. Thanks to modern technology and optional sperm donation, there are now numerous pathways to achieve the desire for children.