ICSI Treatment for Infertility: Procedure, Benefits, Cost & Success Rate
ICSI Treatment for Infertility: Infertility does not always mean that a couple needs the same treatment. The cause of infertility can differ from one couple to another, and treatment is selected after evaluating factors such as age, reproductive health, ovarian reserve, sperm quality, medical history and previous fertility treatments.
Intracytoplasmic Sperm Injection (ICSI) is an advanced assisted reproductive technology that can be particularly useful when male-factor infertility affects fertilisation.
During ICSI, an embryologist injects a single selected sperm directly into a mature egg using specialised laboratory equipment. The resulting embryo may then be cultured and transferred to the uterus as part of an IVF treatment cycle.
In this guide, we explain what ICSI is, who may benefit from it, how the ICSI procedure works, its benefits, limitations, cost, success rate and how it differs from conventional IVF.
At Imprimis IVF & Fertility Centre, Srinagar, our fertility team provides personalised fertility evaluation and treatment based on each couple’s individual needs.
What Is ICSI?
ICSI stands for Intracytoplasmic Sperm Injection.
It is a laboratory fertilisation technique used in an IVF cycle. Instead of placing sperm and eggs together and allowing fertilisation to occur naturally in the laboratory, an embryologist uses a very fine injection pipette to introduce a single sperm directly into a mature egg.
ICSI may be considered when there is a significant risk of difficulty with fertilisation, particularly in cases of male-factor infertility.
Importantly, ICSI is not a separate alternative to IVF in the same way that IUI is. ICSI is generally performed as part of an IVF treatment cycle.
Who May Need ICSI Treatment?
ICSI is not necessary for every couple undergoing fertility treatment. Your fertility specialist and embryology team may consider ICSI depending on the cause of infertility and the couple’s treatment history.
ICSI may be considered in situations such as:
- Very low sperm count
- Poor sperm motility
- Severe abnormalities in sperm morphology
- Previous IVF cycle with low or failed fertilisation
- Sperm obtained through a surgical retrieval procedure
- Certain cases of azoospermia where sperm can be surgically retrieved
- Use of previously frozen sperm in selected situations
- Certain situations involving fertility preservation
- Some cases where assisted fertilisation is considered appropriate based on the treatment plan
The decision should be individualised rather than based solely on a single semen-analysis result.
How Does ICSI Work?
Although ICSI is often described as a single sperm-injection procedure, it usually takes place within a broader IVF cycle.
The treatment generally involves several stages.
1. Ovarian Stimulation
The woman receives fertility medications to stimulate the ovaries and encourage the development of multiple follicles.
During this stage, the fertility team monitors follicular growth using ultrasound scans and, when appropriate, blood tests.
The exact medication protocol and duration vary depending on the patient’s age, ovarian reserve, medical history and treatment plan.
2. Trigger Injection
When the follicles have developed sufficiently, the doctor administers a trigger medication to help the eggs complete their final stage of maturation.
The clinic then schedules egg retrieval for the appropriate time before spontaneous ovulation.
3. Egg Retrieval
Egg retrieval, also known as oocyte retrieval or ovum pickup (OPU), is performed under ultrasound guidance.
A fine needle is passed through the vaginal wall into the ovaries to collect fluid containing the eggs.
The procedure is generally performed under sedation or anaesthesia, depending on the clinic’s protocol and the patient’s circumstances.
The embryology laboratory then assesses the collected eggs.
4. Sperm Collection and Preparation
The male partner usually provides a semen sample on the day of egg retrieval.
In some cases of severe male-factor infertility, sperm may need to be obtained using a surgical sperm-retrieval technique.
Depending on the individual case, techniques may include:
- TESA – Testicular Sperm Aspiration
- TESE – Testicular Sperm Extraction
- PESA – Percutaneous Epididymal Sperm Aspiration
- MESA – Microsurgical Epididymal Sperm Aspiration
- Micro-TESE – Microdissection Testicular Sperm Extraction
The embryology team then processes the sample and selects suitable sperm for ICSI.
5. Intracytoplasmic Sperm Injection
This is the key laboratory step of ICSI.
The embryologist identifies a suitable sperm and carefully holds it with a specialised micropipette.
The embryologist then injects the sperm directly into a mature egg using a microscopic injection system.
The eggs are subsequently monitored to determine whether fertilisation has occurred.
6. Embryo Development
Successfully fertilised eggs begin to divide and develop into embryos.
Embryologists monitor embryo development over the following days.
Some embryos may reach the blastocyst stage around day 5 or 6. Depending on the treatment plan, the clinic may transfer the embryo at an appropriate developmental stage or freeze it for future use.
Not every fertilised egg will necessarily develop into a transferable embryo.
7. Embryo Transfer
When a suitable embryo is selected for transfer, a thin catheter is used to place it into the uterus.
Embryo transfer is generally a short procedure and usually does not require anaesthesia.
The number of embryos transferred depends on factors such as the patient’s age, embryo quality, medical history and applicable clinical recommendations.
In many situations, single embryo transfer may be preferred to reduce the risk of multiple pregnancy.
Who Can Benefit From ICSI for Male Infertility?
ICSI is particularly relevant when problems with sperm quantity or quality may make fertilisation difficult.
Low Sperm Count
Oligozoospermia refers to a lower-than-expected sperm concentration in semen. Severe reductions in sperm count may make conventional fertilisation more difficult.
Azoospermia
Azoospermia means that sperm are not detected in the ejaculate.
Some men with azoospermia may still have sperm that can be retrieved directly from the testicles or epididymis and used for assisted reproduction.
Poor Sperm Motility
When sperm have reduced movement (asthenozoospermia), reaching and fertilising the egg can be difficult.
ICSI bypasses several steps sperm must take to naturally reach and penetrate the egg.
Abnormal Sperm Morphology
Teratozoospermia refers to a high proportion of sperm with abnormal morphology.
ICSI allows the embryologist to select an individual sperm for injection, although sperm morphology alone does not automatically mean ICSI is required.
Previous Fertilisation Failure
ICSI may also be considered when a previous IVF cycle resulted in unexpectedly low or complete fertilisation failure.
What Are the Benefits of ICSI?
Potential advantages of ICSI include:
- It can help overcome certain severe male-factor infertility problems.
- It can be used when only a small number of sperm are available.
- It may allow the use of surgically retrieved sperm in selected cases.
- It can help overcome previous fertilisation failure in appropriate situations.
- It gives the embryologist direct control over the sperm-injection step.
However, ICSI does not guarantee fertilisation, embryo development, implantation or pregnancy.
Does ICSI Increase IVF Success?
One important point patients should understand is that ICSI is not automatically associated with a higher pregnancy rate for every couple.
Its main purpose is to improve the likelihood of fertilisation in situations where conventional IVF may have difficulty achieving fertilisation.
The overall outcome of IVF/ICSI depends on many factors, including:
- Woman’s age
- Egg quality
- Ovarian reserve
- Sperm quality
- Embryo quality
- Uterine and endometrial factors
- Underlying fertility conditions
- Previous treatment history
- Laboratory and embryology factors
Therefore, a fertility specialist should assess the complete clinical picture before recommending ICSI.
ICSI vs IVF: What Is the Difference?
Both IVF and ICSI involve ovarian stimulation, egg retrieval, laboratory embryo development and embryo transfer.
The major difference occurs during fertilisation.
| Conventional IVF | ICSI |
|---|---|
| Eggs and prepared sperm are placed together in the laboratory | A single sperm is injected directly into a mature egg |
| Fertilisation occurs without direct sperm injection | Embryologist performs direct sperm injection |
| Often used when sperm parameters are adequate | Often considered when fertilisation may be difficult |
| Does not require sperm injection | Requires specialized micromanipulation |
ICSI is a fertilisation technique used within an IVF cycle, not simply a replacement for IVF.
ICSI Treatment Cost in India
Costs vary considerably depending on the clinic, city, medicines, diagnostic tests, laboratory procedures, and whether additional treatments are required.
The total cost may be influenced by:
- Ovarian stimulation medicines
- Egg retrieval
- Embryology and laboratory charges
- ICSI procedure
- Anaesthesia or sedation
- Embryo culture
- Embryo freezing
- Frozen embryo transfer
- Additional diagnostic procedures
- Sperm retrieval procedures, when required
For this reason, it is better to obtain an individualised treatment estimate after fertility evaluation rather than relying on a single fixed ICSI price.
For patients seeking ICSI treatment in India, a fertility consultation can help determine which investigations and treatment components are appropriate.
How Long After ICSI Can Pregnancy Be Confirmed?
After embryo transfer, a pregnancy test is generally performed according to the fertility clinic’s recommended schedule.
The exact timing depends on the embryo type transferred and the clinic’s protocol.
A beta-hCG blood test is commonly used to confirm pregnancy because it can provide a more reliable early result than a home urine pregnancy test.
Patients should follow the testing date their fertility team provides rather than testing too early.
Is ICSI Better Than IVF?
Not necessarily.
ICSI may be more appropriate when there is a significant risk of fertilisation problems, particularly with certain forms of male-factor infertility or previous fertilisation failure.
For couples without a clear indication for ICSI, conventional IVF may be an appropriate option.
The choice between conventional IVF and ICSI should be based on the couple’s fertility evaluation, medical history and clinical circumstances.
Frequently Asked Questions About ICSI Treatment for Infertility
Is ICSI only for male infertility?
No. Although ICSI is particularly useful in many cases of male-factor infertility, it may also be considered in other situations, such as previous fertilisation failure or specific treatment circumstances.
Is ICSI painful?
The sperm-injection procedure itself is performed in the embryology laboratory and is not felt by the woman. However, ovarian stimulation and egg retrieval are separate parts of the IVF cycle and may involve medications, discomfort or sedation.
Can ICSI be used when there are very few sperm?
Yes. In selected cases, ICSI can be performed when only a limited number of viable sperm are available. Surgical sperm retrieval may also be considered in some men.
Can ICSI treat azoospermia?
ICSI may be possible for some men with azoospermia if viable sperm can be retrieved from the testicle or epididymis. First, the underlying cause of azoospermia needs to be evaluated.
Is ICSI 100% successful?
No. ICSI does not guarantee fertilisation, embryo development or pregnancy. Outcomes depend on multiple factors, particularly egg and sperm quality, age and embryo development.
How many embryos are transferred after ICSI?
The number depends on individual circumstances and clinical recommendations. In many cases, transferring a single suitable embryo can help reduce the risk of multiple pregnancy.
Final Thoughts: ICSI Treatment for Infertility
ICSI can be an important fertility treatment option for couples facing certain fertilisation and male-factor infertility problems. By injecting a selected sperm directly into a mature egg, ICSI can help overcome some of the barriers that may prevent fertilisation during conventional IVF.
However, ICSI is not required for everyone undergoing IVF. The most appropriate treatment depends on the underlying cause of infertility, fertility history, age, egg and sperm factors and other clinical considerations.
At Imprimis IVF & Fertility Centre, our fertility specialists and embryology team evaluate each couple individually and recommend treatment based on their specific fertility needs.
If you are experiencing low sperm count, poor sperm motility, abnormal sperm morphology, azoospermia, previous IVF fertilisation failure or unexplained infertility, consult a fertility specialist to understand whether ICSI may be appropriate for you.
