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Intra-Cytoplasmic Sperm Injection (ICSI)

An advanced technique used in IVF treatment, where a sperm is injected into an egg to increase pregnancy chances for patients with severe male-factor infertility.

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What is Intra-Cytoplasmic Sperm Injection (ICSI)?

Intra-Cytoplasmic Sperm Injection (ICSI) is part of the assisted reproductive technology (ART) family. Unlike conventional IVF, where multiple sperm compete to fertilise an egg on a dish, ICSI involves the precise injection of a single healthy sperm directly into a mature egg.

This technique significantly increases the chances of fertilisation, and is particularly recommended in cases of male infertility or previous IVF challenges.

At Sunfert, our experienced embryologists carefully perform ICSI in our world-class fertility laboratories, ensuring the highest standards of safety and efficiency.

Who Can Benefit from ICSI?

ICSI is suitable for couples who are undergoing IVF treatment.

At Sunfert, our fertility specialists recommend ICSI in cases such as:

  • low sperm count or poor sperm motility
  • abnormal sperm shape (teratozoospermia)
  • previous IVF cycles with failed fertilisation
  • anejaculation (inability to ejaculate)
  • retrograde ejaculation (semen flows backward into their bladder)
  • male reproductive system blockage
  • men who have undergone vasectomy or have other reproductive surgery
  • couples requiring sperm retrieval techniques such as TESE or PESA

By personalising the fertility treatment plan for each couple, Sunfert ensures that every patient receives tailored care to their unique fertility needs.

How is ICSI Performed at Sunfert?

It can be done in 8 steps.

Step 1: Fertility Evaluation

During a fertility assessment, we conduct a comprehensive evaluation for both partners to identify potential factors affecting fertility and guide a personalised treatment plan.

  • Both Spouses: Review of medical history, reproductive history, and previous fertility treatment outcomes.
  • Female Spouse: Hormonal profile testing, ovarian reserve assessment, and evaluation of the pelvic organs (uterus, ovaries, cervix, fallopian tubes).
  • Male Spouse: Semen analysis to assess sperm quality and reproductive potential.

 

Step 2: Ovulation Stimulation

Hormonal medications will be given by our doctors which used to stimulate the ovaries to produce multiple eggs.

This stage usually starts at Day 2 or Day 3 of the patient’s menstrual cycle and typically lasts about 10 to 12 days depending on the treatment protocol the patient undergoes.

 

Step 3: Oocyte Pick-Up (OPU)

Also known as egg retrieval, this is a minimally invasive procedure in which our fertility specialist collects eggs from the patient’s ovaries. The procedure typically takes about 20 to 30 minutes to complete.

During OPU, patients are given light anaesthesia or monitored sedation by an anaesthetist, ensuring that they remain comfortable and pain-free throughout the procedure.

Before concluding the procedure, our fertility specialist will carefully examine the vaginal puncture site to ensure there is no bleeding.

After OPU, patients are observed for 1 to 2 hours in our day ward before being discharged home. 

Most patients experience only mild bloating, cramping, or minimal bleeding, and many are able to return to their normal routine the next day.

 

Step 4: Sperm Selection

For every egg, our embryologist selects a single healthy sperm with optimal morphology and motility.

 

Step 5: Sperm Injection

Inject the selected sperm carefully into the egg cytoplasm with a specialised microinjection tool.

 

Step 6: Embryo Culture

Fertilised eggs are monitored in our laboratory for 5 to 7 days to develop into viable embryos.

Some patients may choose to undergo Pre-implantation Genetic Testing (PGT), such as PGT-A or PGT-M, to screen their embryos before transfer.

To know why some patients choose to have PGT with their IVF treatment, click the link here to learn more.

  • PGT-A (Preimplantation Genetic Testing for Aneuploidy)
  • PGT-M (Monogenic/Single Gene Disorders)

 

Step 7: Embryo Transfer

The embryo with the highest chance of success, based on quality and development, will be selected for transfer into the patient’s uterus.

Any remaining embryos will be frozen to give the patient another opportunity at attempting pregnancy in the future.

 

Step 8: Post-Transfer Support

Patients receive guidance and hormone support while awaiting Beta hCG pregnancy testing.

At every stage, Sunfert provides personalised care, clear instructions, and continuous support to ensure comfort and confidence.

Take the Next Step with Our Fertility Specialists

If you are facing fertility challenges, start with a consultation with our specialists. We will guide you through your fertility journey with expertise and compassionate care. 

Make an appointment with our Fertility Specialist today and take the next step toward your parenthood goals.

Frequently Asked Questions About ICSI

Question #1: Is ICSI painful?

  • ICSI is the method of injecting a sperm into an egg with the purpose of achieving fertilisation
  • As the injection itself is performed entirely outside the body and in the laboratory it is completely painless.

Question #2: Does ICSI guarantee fertilisation?

  • ICSI improves fertilisation rates, especially in male infertility cases, but success depends on factors like egg quality, sperm health, and overall reproductive health.

Question #3: Are there additional costs for ICSI at Sunfert?

  • No. At Sunfert, we do not charge extra for ICSI as it is part of our standard IVF treatment package.

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The Biological Clock

This tool indicates:

  • Natural conception per month if you have no fertility issues
  • IVF success rate at the same age
  • When to seek help after months of unsuccessful attempts

If you are concerned at any stage – we recommend booking a doctor appointment or a free nurse consultation. The sooner you make a plan the better your chances in the long term.

When to seek advice early

  • If you have polycystic ovaries, endometriosis, or have been through a cancer diagnosis; we recommend you get in touch quickly so we can talk you through all your options and give you the greatest possible chance of success.
  • If you’re a single woman considering motherhood in the future; it’s best to approach us early and consider egg freezing as this can be an option for you while you have a higher ovarian reserve and healthier eggs.
Set your age and the months you’ve been trying to conceive
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Your chance of having a baby per month for fertile couples
Your chance of having a baby per IVF cycle (if experiencing infertility)

Body Mass Index calculator

Being overweight or underweight can reduce fertility, so it is important to keep your body weight within the normal healthy range.

Body Mass Index (BMI) is an indication of your body weight and can be calculated by dividing weight by height. You should aim for a BMI of between 20 and 25, as this will optimise your chances of conception.

Woman’s BMI below 19

Even in these modern times, nature knows best. If a woman's BMI falls below 19, the body senses famine and ovulation is switched off to prevent the risk of having a baby with malnutrition. Excessive exercise can reduce body fat and increase muscle mass to a point where periods cease for the same reason. Risk of miscarriage is also increased in women with a low BMI.

Being underweight

If a woman's BMI falls below 19, the body senses famine and ovulation is switched off to prevent the risk of having a baby with malnutrition. Excessive exercise can reduce body fat and increase muscle mass to a point where periods cease for the same reason. Risk of miscarriage is also increased in women with a low BMI.

BMI’s greater than 30

This can reduce fertility by 50%. Pregnancy for women with a 30+ BMI is often associated with problems such as maternal diabetes, high blood pressure, big babies and increased risk of caesarean section.

Add your height and weight to calculate your BMI