Can the eggs be frozen after retrieval?

Generally, cryopreservation refers to the process of freezing and preserving biological materials. After egg retrieval, the eggs can be cryopreserved. Detailed analysis is as follows:

Egg cryopreservation is a type of assisted reproductive technology aimed at retrieving healthy eggs from the mother's body and freezing them to prevent aging, so they can be thawed and used when needed for reproduction. There are mainly two methods for egg cryopreservation: slow freezing and vitrification. Slow freezing involves storing the eggs in a dehydration solution, gradually freezing them using a computer-controlled system, and then sealing them in ultra-cold liquid nitrogen. However, this method is time-consuming, may cause greater damage to the eggs, and the thawing results may not be ideal. In contrast, vitrification involves placing the eggs into a high-concentration cryoprotectant solution and immediately storing them in liquid nitrogen. This method allows for much faster freezing, causes less damage to the eggs and embryos, and achieves a higher survival rate after thawing. Vitrification is currently the primary method used for egg cryopreservation.

When undergoing egg cryopreservation, it is important to choose a reputable medical facility with professional qualifications and extensive experience to ensure the safety and effectiveness of the procedure.