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A comprehensive glossary of frequently used terms in infertility and assisted reproduction.

Glossary of terms V to Z

Welcome to the glossary aspect of the site. Here we have included a list of all the terms that have been used in the site with an accompanying definition or explanation.

Vagina The female organ of sexual intercourse; the birth canal.
Vaginitis Inflammation of the vagina.
Vaginismus Vaginal spasm, inability to relax vaginal muscles before or during intercourse.
Varicocele An abnormality where varicose veins (dilated veins) lie above one or both testicles; they are present in about 15% of men in the general population, and up to 40% of men attending infertility clinics. It usually causes no discomfort, but can cause infertility in some men. This may be due to an abnormally high temperature within the testicles.
Vas deferens (sperm duct) The muscular tube that carries the sperm from the epididymis to the urethra (pleural is vasa defrentia).
Vasectomy The operation to sterilize a man, in which the vasa deferentia are cut and tied back. It is usually performed under a local anesthetic.
Vasogram An X-ray of the vas deferens.
Viscosity Thickening of the semen.
Washing the sperm A procedure to remove the seminal fluid from the sperm.
Welfare of the child The social and ethical considerations used when considering the well-being of an individual under the age of 18.
ZIFT Zygote Intra-Fallopian Transfer.
Zona pellucida The protective coating surrounding the egg.
Zoladex A long acting GnRh agonist drug used to induce 'down regulation' of the pituitary gland.
Zygote A fertilized egg before cell division begins.

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