Is egg freezing done with vitrification?

Egg freezing starts with medicines that encourage several follicles to develop, followed by monitoring and a procedure to collect mature eggs. In the laboratory, the eggs are prepared with protective solutions and cooled rapidly using vitrification. The method limits the formation of damaging ice crystals. The frozen eggs are then stored in carefully controlled conditions. If you later choose to use them, the laboratory warms the eggs, checks their condition, and may fertilise suitable eggs as part of assisted reproduction.

Ask the fertility team how ovarian stimulation, monitoring, egg collection, vitrification, storage, and future use fit together. Discuss your age, ovarian reserve, medical history, medicines, and reproductive goals. Confirm how the eggs will be labelled and stored, how long storage can continue under local arrangements, and what happens if you change clinics or no longer want storage. Make sure you understand the possible discomforts and medication instructions before starting.

During stimulation, report severe abdominal swelling, intense pain, breathing difficulty, faintness, or reduced urination without delay. After egg collection, seek advice for worsening pain, fever, heavy bleeding, or persistent vomiting. The clinic should give you a direct contact route and explain which symptoms need urgent assessment.

Ask whether vitrification is planned for your eggs, how maturity is assessed, what warming and fertilisation involve, and how the laboratory tracks stored samples. Ask what factors may affect future use and whether another fertility option should be considered.