Understanding the Differences Between IVF and ICSI

February 27, 2024
Difference Between IVF and ICSI

For countless couples who dream of starting or expanding their family, they probably heard of various infertility treatments, including IVF and ICSI. IVF (in vitro fertilization) and ICSI (intracytoplasmic sperm injection) are the two most common methods of infertility treatment, in which sperm and eggs are fertilized outside the uterus in a laboratory of the best IVF centre In Delhi, and the resulting embryos are implanted in the uterus of the expectant mother. 

But what is the difference between IVF and ICSI? In this article, we’ll explain the differences between IVF and ICSI to help you understand what a fertility doctor at the IVF Center In Delhi should consider when deciding whether to recommend IVF or ICSI.

What is IVF?

In vitro fertilization (IVF) is a type of assisted reproductive technology (ART) that fertilizes sperm and eggs outside the body. IVF is a complex process in which eggs are removed from the ovaries and manually combined with sperm in a laboratory for fertilization. The fertilized egg, which is now referred to as an embryo, is inserted into the uterus a few days following fertilization. Pregnancy occurs when this embryo implants in the uterine wall.

People at the best IVF centre In Delhi choose IVF for many reasons, including fertility issues or their partner’s health. IVF is an option if you or your partner have the following problems:

  • Fallopian tubes are blocked or damaged.
  • Endometriosis. 
  • Low sperm count or other sperm disorders. 
  • Polycystic ovary syndrome (PCOS) or other ovarian disease. 
  • Uterine fibroid. 
  • Problems with the uterus.
  • Risk of acquiring an inherited disease or disorder. 
  • Unexplained infertility. 
  • Want to use an egg donor or surrogate mother?

What is ICSI?

Another way to treat infertility is intracytoplasmic sperm injection (ICSI). This involves injecting live sperm into human eggs in a laboratory. This procedure helps in producing embryos (fertilized eggs). ICSI is another form of in vitro fertilization (IVF). IVF Doctors In Delhi often use ICSI when male infertility affects a man’s ability to conceive.

ICSI is very useful for men with male infertility. Your healthcare provider at the best IVF centre In Delhi will suggest ICSI if:

  • There is no ejaculation. 
  • There is a blockage of the male reproductive system. 
  • There is a Low sperm count. 
  • The sperm quality is poor. 
  • There is retrograde ejaculation (semen flowing back into the bladder).

Key differences of IVF vs ICSI

Here is the list demonstrating the key differences between IVF and ICSI by the best IVF In Delhi:

Factors IVF ICSI
Time taken IVF is a complex process consisting of several stages. On average, you can expect this process to take 4 to 6 weeks. On the other hand, ICSI treatment is divided into five main stages, which usually take 10 to 12 days.
Suitability IVF can be suitable for various causes of infertility, including female infertility factors such as blocked fallopian tubes or ovulation disorders.  ICSI is recommended for male infertility problems such as low sperm count, low sperm motility, and abnormal sperm morphology.
Success rate IVF and ICSI generally have similar success rates. However, ICSI has demonstrated a high success rate in cases of severe male factor infertility. The success of any procedure depends on many factors, including the age of the woman, the quality of the eggs and sperm, and the expertise of the fertility clinic.
Cost ICSI is generally more expensive than IVF due to additional laboratory techniques. IVF and ICSI costs may vary depending on geographic location, clinic reputation, and any additional treatments or procedures required. 
Risk of a genetic disorder The risk of genetic diseases during conventional IVF is similar to natural fertilization.  ICSI carries a slightly higher risk of genetic abnormalities due to the possibility of carrying abnormal sperm. 
Number of embryos transferred With IVF, more embryos are transferred into the uterus, increasing the chances of pregnancy but also increasing the risk of multiple pregnancies. ICSI often involves single embryo transfer to reduce the likelihood of multiple pregnancies while maintaining the likelihood of success.

IVF or ICSI: Which treatment should you choose?

The results of your fertility assessment and consultation with one of our IVF specialists in Delhi will help you decide which fertility treatment is right for you. Our specialists will always work with you to provide detailed information about your treatment plan, process, and pricing before you begin your treatment of choice.

Whether IVF or ICSI is your fertility treatment of choice, our team of IVF specialists at the Best Ivf Clinic In Delhi will always provide personalized, patient-centred care and support throughout your journey.


Both IVF and ICSI are valuable tools in assisted reproductive technology, helping couples with fertility problems realize their dreams of becoming parents. While IVF treatment in Delhi is a common and widely used method, ICSI offers a solution to the specific problem of male infertility. 

Choosing between these two methods requires consultation with an IVF specialist in Delhi, taking into account the specific circumstances and needs of the individuals involved. Ultimately, the goal is to choose the approach that offers the best chance of success and the greatest hope of starting a family. 

Choosing between many fertility treatments and confused about which one is best for you? Take a step forward towards Nandi IVF.

Sr. IVF Specialist & Medical Director at NANDI IVF
Dr. Payal Bajaj is an experienced Obstetrician & Gynecologist with over 20 years of experience in the discipline. She is a Reproductive Endocrinologist & Infertility Specialist. She has Done MBBS From the Renowned Lady Hardinge Medical College. DGO from the prestigious VMMC & Safdarjang Hospital, DMAS From World Laparoscopy Hospital.

She has Completed Her esteemed ASPIRE -ISAR Fellowship in the field of Reproductive Medicine from AFGC, Delhi And St' Mother's Hospital Japan.She has also been trained from the University of KEIL Germany. She has won various academic awards all through her academic career.
Dr. Payal Bajaj

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