What is IMSI? (Intracytoplasmic morphologically selected sperm injection)


IMSI is a laboratory technique that uses a high-powered microscope to magnify the sperm by up to 6000 times.

This allows embryologists to assess the sperm for any structural abnormalities that may not be visible with a regular microscope.

The embryologist can then select the best sperm for injection into the egg during IVF.

When is IMSI used?

IMSI is typically recommended for couples who have male infertility issues, including low sperm count, poor sperm motility, and abnormal sperm morphology.

It may also be used for couples who have previously undergone unsuccessful IVF treatments or for men with previous failed fertilization.

IMSI may be used in conjunction with other assisted reproductive technologies, such as intracytoplasmic sperm injection (ICSI).

What are the benefits of IMSI?

By selecting high-quality sperm, IMSI can improve the chances of successful fertilization and increase the likelihood of a successful pregnancy.

IMSI has been shown to improve fertilization rates and increase the number of high-quality embryos available for transfer.

It may also reduce the risk of miscarriage and improve the overall success rates of IVF treatments.

How to prepare for IMSI?

There is no specific preparation required for IMSI. Patients should follow their doctor’s instructions regarding any necessary medications or procedures leading up to the IVF treatment.

Patients may be advised to abstain from sexual activity and/or ejaculation for a few days before the sperm collection.

What to expect during IMSI?

The IMSI procedure is performed in the laboratory and does not involve any discomfort for the patient.

The embryologist will examine the sperm using a specialized microscope and select the best sperm for injection into the egg.

The selected sperm will then be injected directly into the egg using a microneedle.

Myths and Facts about IMSI

Myth: IMSI is a painful procedure.

Fact: IMSI does not involve any discomfort for the patient as it is performed in the laboratory.

Myth: IMSI increases the risk of birth defects.

Fact: There is no evidence to suggest that IMSI increases the risk of birth defects.

Myth: IMSI is the only solution for male infertility.

Fact: IMSI is one of many assisted reproductive technologies that may be used to treat male infertility, and its use will depend on the individual case.