Glossary — Terms You’ll Hear During Egg Donation

Beginning an egg donation journey often means learning a new set of medical terms and abbreviations. From your first consultation through embryo transfer, you’ll hear words that may sound unfamiliar at first. Understanding these terms can help you feel more confident during appointments and make it easier to discuss your treatment plan with your fertility team.

This glossary explains many of the most common egg donation and IVF terms in simple language. While clinics may use slightly different terminology, these definitions reflect commonly accepted medical practices in assisted reproductive technology (ART).

ART (Assisted Reproductive Technology)

A group of medical treatments used to help people achieve pregnancy. IVF, egg donation, embryo freezing, and ICSI are all forms of ART.

Anonymous Donor

An egg donor whose personal identity is not shared with the intended parents. Depending on local laws and clinic policies, only limited non-identifying information may be available.

Blastocyst

A fertilized embryo that has developed for about five to six days. Blastocysts are commonly selected for embryo transfer or freezing because they have reached an advanced stage of development.

Cryopreservation

The process of freezing eggs, sperm, or embryos for future use. Modern IVF programs typically use vitrification, a rapid freezing technique with high survival rates after thawing.

Donor Screening

A series of medical, genetic, psychological, and infectious disease evaluations performed before someone is approved as an egg donor. The goal is to help protect both the donor and future recipients.

Egg Donation

A fertility treatment in which a donor provides eggs that are fertilized in the laboratory. The resulting embryo is transferred to the intended mother’s uterus or to a gestational carrier.

Egg Retrieval

A minimally invasive procedure performed under sedation to collect mature eggs from the donor’s ovaries after ovarian stimulation.

Embryo

A fertilized egg that begins dividing and developing after fertilization. During IVF, embryos grow in the laboratory before transfer or freezing.

Embryo Grading

A laboratory assessment of embryo appearance and development. Grading helps embryologists select embryos for transfer or freezing but does not guarantee pregnancy.

Embryo Transfer

The procedure in which an embryo is placed into the uterus using a thin catheter. It is typically painless and does not require surgery.

Fertilization

The process in which a sperm joins with an egg to create an embryo. Fertilization may occur through conventional IVF or Intracytoplasmic Sperm Injection (ICSI).

Gestational Carrier

A woman who carries a pregnancy for intended parents using an embryo created through IVF. The gestational carrier has no genetic relationship to the baby.

Hormone Stimulation

The use of fertility medications to encourage the ovaries to produce multiple mature eggs during a treatment cycle.

ICSI (Intracytoplasmic Sperm Injection)

A laboratory technique in which a single sperm is injected directly into a mature egg to assist fertilization, often used when male-factor infertility is present.

Intended Parents

The individual or couple planning to become the legal parents of a child born through egg donation or surrogacy.

IVF (In Vitro Fertilization)

A fertility treatment in which eggs are fertilized with sperm outside the body in a laboratory before embryo transfer.

Oocyte

The medical term for an egg cell. Mature oocytes are collected during egg retrieval for fertilization.

Ovarian Stimulation

The phase of treatment during which fertility medications stimulate the ovaries to produce multiple eggs instead of the single egg normally released during a menstrual cycle.

PGT-A (Preimplantation Genetic Testing for Aneuploidy)

A laboratory test performed on embryos to evaluate chromosome number before embryo transfer. PGT-A may help identify embryos with the expected number of chromosomes but does not guarantee pregnancy or the birth of a healthy child.

Recipient

The person who receives donor eggs or embryos as part of fertility treatment. The recipient prepares the uterus before embryo transfer.

Single Embryo Transfer (SET)

The transfer of one embryo during an IVF cycle to reduce the likelihood of multiple pregnancy while maintaining a good chance of success when appropriate.

Vitrification

A rapid freezing method used for eggs and embryos that minimizes ice crystal formation and supports high survival rates after warming.

Why Understanding These Terms Matters

Learning fertility terminology can help you:

• Better understand your treatment plan
• Communicate confidently with your fertility team
• Read laboratory reports more easily
• Make informed decisions throughout the egg donation process
• Reduce confusion during consultations

Remember that every clinic may use slightly different language, so don’t hesitate to ask your care team to explain any unfamiliar terms.

Conclusion

Egg donation involves many specialized medical terms, but understanding the basics can make the journey less overwhelming. From ovarian stimulation and egg retrieval to embryo transfer and cryopreservation, each step has an important role in the IVF process.

Asking questions and becoming familiar with common terminology will help you participate more confidently in treatment decisions and better understand each stage of your family-building journey.

Frequently Asked Questions

Q. What does ART mean in fertility treatment?

Ans. ART stands for Assisted Reproductive Technology, which includes medical treatments such as IVF, egg donation, embryo freezing, and ICSI that help people achieve pregnancy.

Q. What is the difference between an egg donor and a recipient?

Ans. An egg donor provides eggs for fertility treatment, while the recipient receives the embryos created from those donated eggs with the goal of achieving pregnancy.

Q. What is a blastocyst?

Ans. A blastocyst is an embryo that has developed for about five to six days after fertilization and is commonly selected for transfer or freezing.

Q. What is PGT-A?

Ans. PGT-A (Preimplantation Genetic Testing for Aneuploidy) is a test that evaluates embryos for chromosome number before transfer. It helps guide embryo selection but cannot guarantee a successful pregnancy.

Q. Why is it important to understand fertility terminology?

Ans. Knowing common fertility terms helps patients better understand medical recommendations, laboratory reports, treatment options, and discussions with their fertility specialists, making it easier to participate in informed decision-making.

Start your journey today. Contact Surrogacy4All at (212) 661-7673 or email info@surrogacy4all.com