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Fertility A–Z

Fertility has a lot of jargon. Here it is in plain, honest language — no scare tactics, no false promises.

In short

Where can I understand fertility terms in plain language?

This A–Z explains common fertility and IVF terms — AMH, ICSI, IUI, ovarian reserve, PGT-A and more — in plain, honest language. Each definition is written to inform and reassure, never to alarm or to imply any guaranteed outcome.

AMH (Anti-Müllerian Hormone)
A hormone used to estimate ovarian reserve — roughly how many eggs remain. It does not predict pregnancy or measure egg quality, and must be read with age and other factors.
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AFC (Antral Follicle Count)
An ultrasound count of small follicles in the ovaries, used alongside AMH to estimate ovarian reserve.
Blastocyst
An embryo that has developed for about five days, reaching a stage that can help embryologists select the strongest embryo for transfer.
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Cryopreservation
Freezing and storing eggs, sperm or embryos for future use, for medical or personal reasons. It preserves options but doesn't guarantee a future pregnancy.
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DFI (DNA Fragmentation Index)
A test of the integrity of sperm DNA, which can matter for fertilisation and pregnancy loss in some cases.
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Endometriosis
A condition where tissue similar to the uterine lining grows outside the uterus, which can cause pain and sometimes affect fertility.
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hCG (Human Chorionic Gonadotropin)
The pregnancy hormone measured in blood (beta-hCG) tests after embryo transfer. Its rise is interpreted by a doctor in context, not from a single value.
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ICSI
A technique used within IVF where a single sperm is injected directly into an egg, mainly for male-factor situations.
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IUI (Intrauterine Insemination)
A simpler procedure that places prepared sperm directly into the uterus around ovulation, suitable for certain situations.
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IVF (In Vitro Fertilisation)
A process that combines eggs and sperm in the lab to create embryos, one of which is later transferred to the uterus. Right for specific causes, not everyone.
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Laparoscopy
A minimally invasive surgical procedure used to examine or treat conditions in the pelvis, such as endometriosis or blocked tubes.
Micro-TESE
A microsurgical procedure to retrieve sperm directly from the testes when there is little or no sperm in the ejaculate.
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Ovarian Reserve
An estimate of the quantity of eggs remaining, assessed with AMH and an AFC scan. It's one factor in fertility, not a verdict.
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PCOS / PCOD
A common hormonal pattern that can make ovulation irregular and delay pregnancy. It's one of the most manageable causes of delay.
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PGT-A
Preimplantation genetic testing that screens IVF embryos for the correct number of chromosomes, used selectively — never a guarantee.
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Recurrent Pregnancy Loss
Typically two or more miscarriages, which deserves a careful, compassionate investigation for contributing causes.
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Semen Analysis
A quick, non-invasive test of sperm count, motility and shape — one of the most useful early tests for any couple.
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Vitrification
A fast-freezing technique used to preserve eggs and embryos with high survival rates.
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Fertility A–Z — plain-language glossary · Avira Fertility