Pregnancy loss by any cause before 20 weeks of gestation.

Scar tissue attaching or abnormally connecting, covering or distorting organs, such as the tubes, ovaries or other internal organs, limiting their movement and possibly causing infertility and pain.

(formerly the American Fertility Society (AFS)A large multidisciplinary organization serving as a platform for new ideas, education and advocacy in fertility and reproductive medicine issues.

Sampling a small quantity of the fluid that surrounds the fetus that permits detection of certain abnormalities.

of fluid and cells by suction through a needle.

A group of therapies that employ manipulation of the egg and/or sperm and/or early conceptus in order to establish a pregnancy.

The body temperature at rest. It is taken orally each morning immediately upon awakening and recorded on a calendar chart. The readings are studied to help identify the time of ovulation.

A process the sperm must undergo that enables fertilization.

Infertility due to previous surgery or structural abnormality of the cervix. Also applied when there are factors associated with the cervix which inhibit sperm function.

The lower section of the uterus which protrudes into the vagina and serves as a reservoir for sperm.

The secretion of the cervix which changes in volume and consistency throughout the menstrual cycle. Its quality is a reflection of hormonal stimulation.

A positive pregnancy test, but with levels of pregnancy hormone too low for ultrasound documentation of a pregnancy.

Division of one cell into 2, 2 into 4, 4 into 8, etc

A pregnancy in which the beating fetal heart has been identified by ultrasound.

An oral medication used to stimulate the ovary and/or synchronize an ovarian follicle development.

A non-hereditary characteristic, or defect, developing before birth.

A special gland that forms on the surface of the ovary at the site of ovulation. It produces progesterone during the second half of the cycle which is necessary to prepare the uterine lining for implantation.

The cloud-like collection of supportive follicle cells that surround the oocyte.

Controlled freezing and storage.

fluid filled structure. May be normal or abnormal depending on circumstances.

The transfer of a fertilized egg from a volunteer (may be paid or unpaid) donor to an otherwise infertile recipient.

The introduction of sperm from a volunteer donor into a woman's vagina, cervix, or uterine cavity, in order to achieve a pregnancy.

A thick walled tubular structure running from each testis into the ejaculatory duct. These structures carry sperm from the epididymis to the penis.

A pregnancy implanted outside the uterus; most often in the Fallopian tube (tubal pregnancy).

The term used to describe the early stages of fetal growth. Strictly defined from the second to the ninth week of pregnancy, but often used to designate any time after conception.

The study of hormones, their function, the organs that produce them and how they are produced.

The inner lining of the uterus. The area of initial attachment of the conceptus. A portion of this lining is shed each month with menstruation.

The extraction of a small piece of tissue from the endometrium (lining of the uterus) for microscopic examination.

The presence of endometrial tissue (tissue that normally lines the uterus) in abnormal locations such as the ovaries, fallopian tubes and abdominal cavity.

Portion of the male genital tract next to the testis where sperm maturation is partially accomplished. Receives sperm from the testis and continues as the ductus deferens.

The principal hormone produced by the growing ovarian follicle.

Union of a sperm with an oocyte.

The finger like extensions from the end of the uterine tube that aid in gathering the oocyte at ovulation.

A functioning ovarian “cyst” containing a wall of granulosa cells which produce estrogen and nourish the oocyte (egg). Each Follicle contains a single oocyte.

A hormone produced by the pituitary gland which cause the ovarian follicles to grow.

A method of assisted fertilization that involves surgically removing an egg from the ovary, combining it with sperm, and immediately placing the egg and sperm into the fallopian tube. Fertilization takes place inside the fallopian tube.

Hormone that stimulates the ovary.

Hormone produced by the brain that stimulates the pituitary to secrete gonadotropins.

pregnancy

see Sperm Penetration Assay

A hormone of early pregnancy that can be monitored to determine the age and viability of the gestation. This hormone is also used as an injection in ovarian stimulation regimens to cause the final maturation of the oocyte (egg) and its follicle and eventually cause ovulation.

A purified extract of LH and FSH, hormones secreted from the pituitary gland which stimulate the ovary. It is a commercial preparation used by injection to facilitate development of multiple follicles.

see human menopausal gonadotropin

A portion of the brain that acts as a "pacemaker" controlling the production and periodic release of hormones from the pituitary gland.

An x-ray procedure in which a special dye is injected into the uterus to illustrate the inner contour of the uterus and degree of openness (patency) of the uterine tubes.

A telescopic device, much like the laparoscope, the enables examination of the uterine cavity.

The embedding of the conceptus (embryo) into the lining of the uterus.

Transfer of semen or sperm for the purpose of establishing a pregnancy.

Placement of a single sperm into an oocyte (egg) using a small glass needle to penetrate the outer coatings of the egg.

A method of assisted reproduction that involves surgically removing an egg from the ovary, combining it with prepared sperm in the laboratory to permit fertilization.

A thin, lighted viewing instrument with a telescopic lens through which a surgeon views the exterior surfaces of a female's reproductive organs and abdominal cavity.

A synthetic form of gonadotropin (luteinizing hormone) releasing hormone used to suppress ovarian function.

The last fourteen days of an ovulatory cycle, associated with progesterone production from the corpus luteum.

A hormone produced and released by the pituitary gland. In the female it is responsible for ovulation and the maintenance of the corpus luteum. In the male it stimulates testosterone production and is important in the production of sperm cells.

Human FSH prepared in an injectable form for ovarian stimulation.

containing nutritive growth substances enabling cells to survive in an artificial environment.

A period. Cyclic (monthly) flow of blood (menstruation) signifying ovulation, but failure to achieve pregnancy. Onset of bleeding is considered cycle day 1.

A method of assisted reproduction when the process is manually performed under the guidance of the microscope.

The female germ cell often called an egg.

The female sex gland with both a reproductive function (releasing oocytes) and a hormonal function (production of estrogen and progesterone).

The release of a mature egg from the surface of the ovary.

Mature oocytes.

A screening test to determine the presence of cervical cancer. It is done by gently touching a cotton swab on the cervix and then wiping the swab on a slide which is treated and examined under a microscope.

see human menopausal gonadotropin

A small organ at the base of the brain that both controls and is controlled by production of hormones from the various endocrine glands including the ovary.

Abnormal condition where the oocyte is fertilized by more than 1 sperm.

The microscopic analysis of a sample of vaginal and cervical secretions that has been collected after sexual intercourse.

A hormone produced by the ovary which prepares the uterus for implantation and supports the early pregnancy.

A specialized stage of the oocyte or sperm nucleus before their union. After this union the conceptus is referred to as a zygote.

Oocytes are aspirated, allowed to fertilize in vitro and the conceptus transferred before cell division (cleavage).

The microscopic examination of the ejaculate to determine the number of sperm, their shapes (morphology), and their ability to move (motility).

In some couples blood, semen and/or cervical mucus contain substances which hinder sperm action through an allergic or immune reaction.

A test where sperm are incubated with non-viable hamster eggs to determine the capacity of the sperm to fertilize.

A voluntary regulatory and consultative organization of the American Society for Reproductive Medicine responsible for assisted reproduction,

the removal of sperm directly from the testis or the epididymis using a needle for aspiration. Usually associated with sperm injection into the oocyte (ICSI).

Replacement of a cleaving conceptus into the uterine tube rather than into the uterus.

Through the vagina.

Lack of obstruction of the Fallopian tubes.

High frequency sound waves that can be used painlessly, safely, and without radiation, to view the internal portions of the body.

Inability to conceive where no cause has been found despite routine testing of semen, ovulation, and pelvic anatomy by laparoscopy.Uterus: Womb. The reproductive organ that houses, protects and nourishes the developing embryo and fetus.

The anatomic and physiologic connection between the uterus and the ovary which serves to transport the egg and sperm, as the site of fertilization and support and transport the conceptus in route to the uterus.

A varicose vein around the ductus deferens and the testes. This may be a cause of male infertility.

A conceptus in which the egg and sperm genetic material (pronuclei) have united.

see PROST