Frozen Embryo Transfer(FET)
procedureDefinition
An IVF cycle in which previously cryopreserved (frozen) embryos are thawed and transferred into a prepared uterus.
In IVF Treatment
FET cycles are less physically demanding than fresh cycles since no stimulation or retrieval is required. Studies show FET success rates are comparable to or higher than fresh transfers, partly because the uterus can be optimally prepared without the hormonal impact of stimulation.
Frequently Asked Questions
How is the uterus prepared for a FET?
Either in a natural/modified natural cycle (monitoring for the body's own ovulation) or with hormone replacement (estrogen to build the lining, then progesterone for timing). Your doctor will choose based on your situation.
Are FET success rates better than fresh transfers?
Many studies show comparable or slightly higher success rates for FET, especially when the transfer is in a programmed cycle that optimizes lining preparation without the hormonal disruption of stimulation.