What Is ICSI and When Is It Used in Thailand?

Understanding ICSI

Intracytoplasmic sperm injection (ICSI) is a specialized form of in vitro fertilization (IVF) where a single sperm is injected directly into an egg to achieve fertilization. Unlike conventional IVF, where eggs and sperm are mixed in a dish and fertilization occurs naturally, ICSI bypasses many barriers to fertilization. It was originally developed to treat severe male factor infertility but is now used in a variety of situations.

How ICSI Works

The ICSI procedure is performed by an embryologist using a micromanipulation microscope. A single sperm is selected, immobilized, and drawn into a fine glass needle. The needle is then used to pierce the outer layer of the egg (the zona pellucida) and deposit the sperm directly into the cytoplasm. This ensures that fertilization can occur even if the sperm has poor motility or abnormal morphology.

ICSI is typically performed on mature eggs (metaphase II) retrieved during an IVF cycle. After injection, the eggs are monitored for fertilization (appearance of two pronuclei) and subsequent embryo development.

When Is ICSI Recommended?

ICSI is most commonly recommended in the following situations:

• Low sperm count (oligozoospermia): When the number of sperm available is too low for conventional IVF.
• Poor sperm motility (asthenozoospermia): When sperm have difficulty swimming to and penetrating the egg.
• Abnormal sperm morphology (teratozoospermia): When a high percentage of sperm have abnormal shape, reducing their ability to fertilize.
• Previous failed fertilization in conventional IVF: If prior IVF cycles resulted in no or very few fertilized eggs.
• Use of surgically retrieved sperm: Sperm obtained via testicular sperm extraction (TESE) or microdissection TESE often require ICSI because they are not fully mature or motile.
• Frozen sperm with reduced quality: Sperm that has been frozen and thawed may have decreased motility and require ICSI.
• Preimplantation genetic testing (PGT): Some clinics prefer ICSI for all PGT cycles to minimize the risk of contamination from extraneous sperm DNA.

ICSI in Thailand: What to Consider

Thailand has a well-developed fertility industry with many clinics offering ICSI as part of their IVF services. When considering ICSI in Thailand, patients should evaluate the following:

• Clinic experience: Ask about the embryology team’s experience with ICSI, especially for complex cases such as severe male factor infertility or surgically retrieved sperm.
• Laboratory standards: Inquire about the IVF laboratory’s accreditation, quality control measures, and success rates for ICSI cycles.
• Cost: ICSI typically adds an extra fee to the base IVF cycle cost. Confirm the total cost and what it includes (e.g., sperm preparation, injection, embryo culture).
• Legal and regulatory aspects: Thailand has specific regulations regarding assisted reproductive technology. Confirm that the clinic complies with local laws and that your treatment plan is legally permissible.
• Travel and accommodation: Plan for the duration of the IVF cycle (approximately 2-4 weeks) and arrange accommodation near the clinic.

Questions to Ask Your Clinic

Before proceeding with ICSI in Thailand, consider asking the following questions:

• What is your clinic’s fertilization rate with ICSI for cases similar to mine?
• How many ICSI cycles do you perform per year?
• Do you offer additional techniques such as IMSI (intracytoplasmic morphologically selected sperm injection) or PICSI (physiological intracytoplasmic sperm injection) for sperm selection?
• What is the policy on using surgically retrieved sperm?
• How are embryos monitored after ICSI, and what is the criteria for transfer?
• What are the costs for ICSI, and are there any additional fees for sperm preparation or freezing?

Risks and Limitations

ICSI is generally considered safe, but it is important to understand potential risks and limitations:

• Fertilization failure: Even with ICSI, fertilization may not occur in some eggs (typically 5-10% failure rate).
• Embryo development: ICSI does not guarantee normal embryo development or pregnancy.
• Genetic concerns: There is a slightly increased risk of certain genetic abnormalities (e.g., sex chromosome anomalies) with ICSI, though the absolute risk is low. Some clinics recommend genetic counseling or PGT.
• Damage to the egg: The injection process can occasionally damage the egg, though this is rare in experienced hands.

Next Steps

If you are considering ICSI in Thailand, start by researching clinics that specialize in male factor infertility. Request a consultation to discuss your specific situation, including sperm analysis results and any previous IVF outcomes. Be prepared to provide medical records and ask for a detailed treatment plan and cost estimate. Remember that success depends on many factors, including egg and sperm quality, maternal age, and clinic expertise.

For more information on related topics, see our guides on PGT in Thailand, IVF guides, and frequently asked questions.

Frequently asked questions

Is ICSI always used in IVF in Thailand?

No, ICSI is not always used. It is typically recommended when there is male factor infertility or previous failed fertilization. Some clinics may offer ICSI as an option for all IVF cycles, but it is not mandatory.

Does ICSI increase the chance of pregnancy compared to conventional IVF?

For couples with male factor infertility, ICSI can significantly improve fertilization rates compared to conventional IVF. However, for couples with normal sperm parameters, conventional IVF may be equally effective. The overall pregnancy rate depends on many factors beyond fertilization.

Can ICSI be used with frozen sperm?

Yes, ICSI is often used with frozen sperm, especially if sperm quality declines after thawing. It can also be used with surgically retrieved sperm that has been frozen.

What is the success rate of ICSI in Thailand?

Success rates vary by clinic and patient factors. It is best to ask individual clinics for their most recent ICSI success rates, including fertilization rates and live birth rates per cycle.

Are there any additional costs for ICSI in Thailand?

Yes, ICSI usually involves an additional fee on top of the standard IVF cycle cost. This fee covers the embryologist's time, specialized equipment, and sperm preparation. Confirm the exact cost with your clinic.

Continue your research

• PGT in Thailand overview
• PGT and IVF guides
• Frequently asked questions

Medical information notice: This article is educational and does not replace individual assessment, diagnosis, genetic counselling or treatment advice from a licensed clinician. Provider services, availability, fees and policies should be verified directly before booking.