Do you need frozen embryo transfer after embryo freezing?

Embryo freezing stores embryos after fertilisation and laboratory development. Frozen embryo transfer is the later procedure of thawing a selected embryo and placing it in the uterus. Freezing keeps an option available; it does not set a date or require you to use that option.

You may postpone transfer for personal, medical, or family-planning reasons. Your clinic can explain storage arrangements, consent choices, and what happens if an embryo does not survive thawing. A transfer cycle may use medicines to prepare the uterine lining or may follow your natural cycle.

Discuss whether you want to transfer now, store embryos for later, or leave treatment paused. Ask about the preparation schedule, consent forms, embryo selection, and the clinic’s process for changing your decision. More detail is available on [Frozen Embryo Transfer](/treatments/fertility-and-assisted-reproduction/frozen-embryo-transfer/).

During a preparation cycle, contact your clinic for heavy bleeding, severe pelvic pain, faintness, breathing difficulty, or a sudden illness. Follow urgent instructions from your fertility team, especially if you are taking hormones or other prescribed medicines.

How long can I keep this decision open? What preparation would transfer involve? How is an embryo selected and thawed? What are my consent choices if I pause treatment or change my plans?