Intracytoplasmic Sperm Injection (ICSI)

ICSI (Intracytoplasmic Sperm Injection) is an assisted reproduction technique used as part of an IVF (in vitro fertilisation) treatment. It enables couples in which the man has been diagnosed with fertility issues to have a child of their own. The semen is provided in a sample or a testicular biopsy – if necessary. Embryologists individually select the best sperm, which is subsequently used to fertilise the eggs.
Monitor laboratorio ICSI

Intracytoplasmic Sperm Injection (ICSI)


Recommended for

  • Men with a low sperm count, sperm motility problems or poor sperm morphology
  • Men who have had a vasectomy
  • Men who have difficulty ejaculating normally, as in the case of retrograde ejaculation (because of neurological problems, diabetes, etc
  • Cryopreserved sperm samples from men who have had a vasectomy or have had chemotherapy or radiotherapy. These samples are very valuable as there is a limited quantity and ICSI allows them to be used to best effect
  • Other factors: several cycles of unsuccessful IVF, a small number of eggs obtained from egg collection, or when it is necessary to identify healthy embryos using pre-implantation genetic diagnosis (PGD)

In 30 years, the IVI Group has helped more than 200,000 dreams come true.


97% of our patients said they would recommend IVI. We work with you at every stage of the treatment, providing support and care.


IVI has a worldwide reputation for innovative research and has developed and patented pioneering techniques and technologies.


IVI is one of the largest fertility providers in the world, with over 65 clinics in 9 countries.


We always start with an individual assessment of each patient to identify the most suitable fertility treatment, but the following gives an overview of the process that is normally followed.

Ovarian stimulation

Equipo ICSI trabajando

Depending on the protocol used and how quickly the patient responds, the stimulation phase of the cycle can take between 10 and 20 days. During treatment, 4 ultrasound scans are carried out and a blood test may also be taken to measure the amount of hormones produced by the ovaries. The scans and blood tests monitor how the follicles (fluid filled sacs in which the eggs develop and mature) are growing.

ICSI - microscopio

Egg Collection and the laboratory


análisis ICSI
Cultivo embrionario del tratamiento ICSI

Embryo culture in the laboratory


Proceso transfer de ICSI
Vitrificación de embriones tratamiento ICSI

Vitrification of remaining embryons

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