Glossary Terms

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10 08, 2015

Assisted Hatching

By | 2015-08-10T18:34:39+00:00 August 10th, 2015|Comments Off on Assisted Hatching

A sophisticated micromanipulation technique for perforating the shell surrounding the egg (the zona pellucida) so that the embryo can "break out" and implant in the uterus. As women get older, the zona pellucida may become harder or tougher, making it difficult for the embryos to hatch. As a result, implantation and pregnancy may not occur. [...]

10 08, 2015

Assisted Reproductive Technology (ART)

By | 2015-08-10T18:35:20+00:00 August 10th, 2015|Comments Off on Assisted Reproductive Technology (ART)

Treatments and procedures involving the handling of human eggs and sperm for the purpose of establishing a pregnancy. Types of ART include in vitro fertilization (IVF), oocyte donation, preimplantation genetic diagnosis (PGD) intracytoplasmic sperm injection (ICSI), assisted hatching, fragment removal, embryo cryopreservation, frozen embryo transfer, and oocyte donation.

10 08, 2015

Aygestin (Norethindrone Acetate)

By | 2015-08-10T18:36:05+00:00 August 10th, 2015|Comments Off on Aygestin (Norethindrone Acetate)

Aygestin is a form of progestin, a synthetic substance that chemically resembles progesterone, that may be prescribed in ovulation induction therapies to inhibit ovulation and quiet the ovaries in advance of egg stimulation using injectable hormones. This "down time" helps the ovaries respond better to treatment. In much the same way that oral contraceptives prevent [...]

10 08, 2015


By | 2015-08-10T18:36:54+00:00 August 10th, 2015|Comments Off on Azoospermia

The absence of sperm in the ejaculate.

10 08, 2015

Baby Aspirin

By | 2015-08-10T18:38:10+00:00 August 10th, 2015|Comments Off on Baby Aspirin

Low-dose aspirin (80 to 100 milligrams) used in infertility treatment to thin the blood.

10 08, 2015

Basal Body Temperature (BBT)

By | 2015-08-10T18:38:45+00:00 August 10th, 2015|Comments Off on Basal Body Temperature (BBT)

The body temperature at rest. A slight rise in the BBT indicates that ovulation has occurred. Some female infertility patients are asked to fill out a BBT chart showing their temperature, taken orally, on consecutive days over a period of one or more months.

10 08, 2015


By | 2015-08-10T18:40:11+00:00 August 10th, 2015|Comments Off on Blastocyst

An embryo that is approximately five days old and consists of some 100 cells that form an outer shell of cells protecting an attached inner group of cells surrounding a fluid core. The outer cells develop into the placenta, which protects the fetus created from the inner cells.

10 08, 2015

Blastocyst transfer

By | 2015-08-10T18:40:56+00:00 August 10th, 2015|Comments Off on Blastocyst transfer

Allowing in vitro embryos to reach blastocyst stage (typically five days after fertilization) before transferring them into the uterus. By waiting for the embryos to reach a more developed stage, more viable embryos may be selected, and thus fewer embryos may be transferred than is customary when embryos are transferred on the third day of [...]

10 08, 2015


By | 2015-08-10T18:41:31+00:00 August 10th, 2015|Comments Off on Blastomere

A single cell from a developing embryo.

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