Embryos are cultured in incubator up to five days, until they become blastocysts. At this stage it may be easier to select the best quality embryo(s). Not all embryos will develop to produce blastocysts in the laboratory. Embryos can stop developing at the four-cell stage (day two) and progress no further, then it would be advisable to proceed with day III transfer. As with normal embryo transfer, due to the risks of a multiple birth if more than one blastocyst is transferred, you may want to consider single blastocyst transfer.
What’s so special about blastocyst culture in an IVF setting?
- Standard practice in IVF involves the replacement of embryos into the uterus after 3 days when the embryos are at the cleavage stage of development.
- Blastocyst transfer however involves extending the period that the embryos are cultured in the laboratory to 5 or 6 days.
Blastocyst Step-by-Step Guide
Initial Consultation with Neelima Fertility Specialist
Start of Treatment
Medications are given for development of one or more mature follicles in a woman’s ovaries.
Ovulation induction cycles are followed by a HCG Injection to induce ovulation, the final maturation of the egg and loosening of the egg from the follicle wall.
Pelvic ultrasound scans are used to access the endometrium (lining of the womb) and to determine how the follicles are developing.
The couple is advised to have intercourse as per the ovulation scan and days suggested by the doctor.
Take the first step today