IVF ICSI Procedure Steps Explained
For many couples facing fertility challenges, particularly those involving male factor infertility, the path to parenthood relies on a highly specialized technique called Intracytoplasmic Sperm Injection (ICSI). While standard IVF involves mixing eggs and sperm in a dish and hoping for natural fertilization, ICSI takes chance out of the equation by physically facilitating that crucial connection.
At Liv Hospital, we believe in transparency. Understanding exactly what happens behind the laboratory doors can help alleviate anxiety and make you feel more connected to your treatment journey. Here is a detailed breakdown of the specific IVF ICSI Procedure Steps performed by our expert embryologists.
Step 1: Ovarian Stimulation and Monitoring
The journey begins exactly like a standard IVF cycle. You will administer fertility medications for 8 to 14 days to stimulate your ovaries to produce multiple mature eggs. During this time, you will undergo regular ultrasounds and blood tests to monitor follicle growth. Once the follicles reach the appropriate size, a “trigger shot” is given to induce final maturation.
Step 2: Egg Retrieval and Sperm Collection
approximately 36 hours after the trigger shot, the egg retrieval takes place.
- For Her: Under light sedation, the doctor uses a thin needle guided by ultrasound to collect the eggs from the ovaries.
- For Him: Simultaneously, a semen sample is provided (or surgically retrieved if necessary).
Step 3: Preparation and Hyaluronidase Treatment
Before ICSI can begin, the eggs must be prepared. Unlike standard IVF, where eggs are left in their protective cloud of cells (cumulus cells), ICSI requires a clear view of the egg. The embryologist gently removes these surrounding cells using an enzyme called hyaluronidase. This allows the specialist to assess the maturity of the egg, as only mature eggs (MII phase) can be used for ICSI.
Step 4: The Micro-Injection (The ICSI Technique)
This is the defining step of the procedure, performed under a high-powered microscope using micromanipulation tools.
- Selection: The embryologist scans the sperm sample to find a single sperm with the best shape (morphology) and movement (motility).
- Immobilization: The selected sperm is immobilized by gently compressing its tail with a glass pipette.
- Injection: The egg is held steady by a holding pipette. A microscopic glass needle containing the single sperm is carefully inserted through the egg’s outer shell (zona pellucida) and membrane.
- Deposition: The sperm is released directly into the center (cytoplasm) of the egg, and the needle is gently withdrawn.
Step 5: Fertilization Check and Culture
The injected eggs are placed in an incubator that mimics the environment of the fallopian tubes. About 16 to 18 hours later, the embryologist checks for signs of fertilization (the appearance of two pronuclei). Successfully fertilized eggs (now embryos) are cultured in the lab for 3 to 5 days, growing into blastocysts.
Step 6: Embryo Transfer
The final step is the transfer of the best-quality embryo(s) into the uterus. This is a simple, painless procedure that does not require anesthesia. Any remaining high-quality embryos can be frozen for future use.
Supporting Your Body and Mind
The precision of ICSI offers hope where nature needs a helping hand, but the success of any fertility treatment is also influenced by your overall health. Reducing stress, eating nutrient-rich foods, and maintaining a positive mindset create the best environment for an embryo to thrive. For expert advice on wellness, lifestyle tips, and holistic self-care during your journey, we invite you to explore live and feel.
