- A man donates sperm. If this is not possible, the biomaterial is surgically removed.
- The ejaculate is frozen. In cryptozoospermia, severe male infertility, embryologists process the biomaterial by centrifuging it and searching for spermatozoa in the sediment. If it is possible to find spermatozoa of good quality, they are frozen using a special technology for cryopreservation of single spermatozoa.
- The partner is prescribed hormonal stimulation. On the day determined by the doctor, an ovarian puncture is performed (extraction of follicular fluid with eggs). In the laboratory, the resulting eggs are fertilized with thawed spermatozoa and placed in a special environment for development.
- Fertilization is also possible with fresh sperm, however, in the case of cryptozoospermia, it is advisable to stock up on frozen sperm so that there are exactly enough spermatozoa for all the eggs obtained.
- High-quality embryos are transferred to the uterine cavity for further implantation. At the couple's request, some of the embryos can also be frozen.
Questions and answers
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