IVF with IMSI in Turkey

IMSI, intracytoplasmic morphologically selected sperm injection, is ICSI with one extra step: before a sperm is injected into the egg, the embryologist examines it under a microscope at several times the magnification used for standard ICSI, looking for vacuoles and shape defects in the head that are invisible at normal power. The idea is that a sperm that looks better at high magnification carries better DNA and makes a better embryo. Everything else about the cycle, the stimulation, the egg collection, the culture and the transfer, is the same as any ICSI cycle.

The honest summary of the evidence is that IMSI has not been shown to produce more babies than ICSI. The most careful review of the trials found that it may make little or no difference to live birth or to clinical pregnancy, and that the studies are of low quality. It takes longer, it costs more, and it is sold in Turkey and elsewhere as a premium version of ICSI. It may still be reasonable to discuss after repeated ICSI failure with severely abnormal sperm, but as an option with uncertain benefit, not as a step up.

A semen analysis showing severely abnormal shape is a finding, not a diagnosis. The causes that can be found and sometimes treated include varicocele, infection, hormonal disorders, obstruction, medication and lifestyle factors, and genetic causes that matter for the child as well as for the treatment. A urologist with an interest in male fertility should see the man before any laboratory technique is chosen.

Sperm DNA fragmentation testing is sometimes offered alongside IMSI. It measures a real thing, but its value in deciding treatment is itself uncertain, and a high result does not mean IMSI is the answer. Treat both as part of a discussion with a specialist, not as items on a menu.

• No demonstrated benefit. The main risk. Money and hope spent on a technique that the trials have not shown to increase live births.
• The risks of the ICSI cycle itself. Ovarian hyperstimulation, procedure risks at egg collection, multiple pregnancy if more than one embryo is transferred, ectopic pregnancy and miscarriage.
• A skipped diagnosis. Going straight to sperm selection can leave a treatable or important cause of the sperm problem unfound.
• Longer laboratory time. Eggs wait while sperm are examined; laboratories manage this, but it is a real difference from ICSI.
• Genetic causes passed on. Severe male factor infertility can have genetic causes that ICSI and IMSI bypass rather than treat. Counselling before the cycle is the honest approach.
• Travel and follow-up. Complications and the pregnancy test happen after you have gone home; who manages them should be agreed first.

• Check the centre's licence. Licensed assisted reproduction centres only; ask for the licence, not for awards.
• Ask why IMSI for you. A specific reason from your results and history, not a general claim.
• Ask for the comparison. The centre's live births per cycle started for ICSI and for IMSI in couples like you. If it cannot produce both, it cannot justify the premium.
• Ask about the man's assessment. A urological review and, where relevant, genetic counselling before the cycle.
• Ask what is included. IMSI is often priced as an add-on to an ICSI package; know the difference in writing.
• Plan the trips. A fresh cycle needs around two to three weeks in Turkey or a shorter stay if stimulation starts at home; freeze-all plans need a second trip.

• Cochrane Library, regular intracytoplasmic sperm injection versus intracytoplasmic morphologically selected sperm injection for assisted reproduction, systematic review.
• European Society of Human Reproduction and Embryology, good practice recommendations on add-ons in reproductive medicine.
• Human Fertilisation and Embryology Authority, treatment add-ons ratings, including sperm selection techniques.
• European Association of Urology, guidelines on sexual and reproductive health: male infertility.
• Republic of Türkiye Ministry of Health, regulation on assisted reproductive treatment practices and centres.