Glossary term · Treatment
Embryo transfer (also: ET): Embryo transfer is the IVF step in which an embryo created in the laboratory is placed into the uterus through a thin catheter.
Embryo transfer is the step in IVF when one or more embryos are placed in the womb through a thin catheter passed through the vagina and cervix. MedlinePlus says it usually happens three to five days after egg collection and fertilisation, while the woman is awake. Unused good-quality embryos can be frozen.
What happens during embryo transfer?
The procedure is done while the woman is awake. A thin catheter carries the embryo through the vagina and cervix into the uterus. The HFEA notes that transfer takes place two to five days after fertilisation. The embryologist selects the embryo that looks strongest.
Why does the number of embryos matter?
MedlinePlus says the number transferred depends on several factors, especially the woman’s age. Transferring more than one embryo raises the chance of twins or more. The HFEA warns that multiple births can cause serious health problems for mother and babies. In India the ART (Regulation) Act 2021 caps the number of eggs or embryos that may be placed in one cycle at three. Your specialist will explain what they recommend and why.
What happens after transfer?
MedlinePlus says full bed rest is usually not needed. Most women resume normal activity the next day. Progesterone support usually continues, and a pregnancy test follows about 12 to 14 days after transfer. It advises contacting a provider promptly for fever, pelvic pain, heavy bleeding or blood in the urine.
How should you plan travel around it?
Ask the clinic whether a fresh or frozen transfer is planned. A frozen transfer can sometimes happen on a later trip. Agree how progesterone will be supplied and who will do the pregnancy test if you are home by then.
Questions people ask
Can I fly soon after embryo transfer?
Ask your fertility specialist. They will consider your health, any ovarian hyperstimulation and the distance home. Agree a written plan for medicines, the pregnancy test and who to call if you have warning symptoms.
What happens to embryos that are not transferred?
Good-quality spare embryos can be frozen for later use. In India storage and use are governed by the ART (Regulation) Act 2021. Ask the clinic about consent forms, storage terms and what the law allows.
Sources
- MedlinePlus: In vitro fertilization (IVF)
- HFEA: In vitro fertilisation (IVF)
- PRS Legislative Research: ART Act text
General information, not medical or legal advice. Rules change: confirm with the official source. Your treating specialist decides on suitability, treatment and length of stay. How we write and check.