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Related Concept Videos

Oogenesis02:07

Oogenesis

In human women, oogenesis produces one mature egg cell or ovum for every precursor cell that enters meiosis. This process differs in two unique ways from the equivalent procedure of spermatogenesis in males. First, meiotic divisions during oogenesis are asymmetric, meaning that a large oocyte (containing most of the cytoplasm) and minor polar body are produced as a result of meiosis I, and again following meiosis II. Since only oocytes will go on to form embryos if fertilized, this unequal...
Infertility in Females01:28

Infertility in Females

Female infertility is defined as the inability to conceive after a year of regular, unprotected intercourse and affects about 10–15% of couples worldwide. The primary cause of female infertility is ovulatory disorders, which hinder the release of eggs. These disorders can be classified as hypothalamic amenorrhea, polycystic ovarian syndrome (PCOS), premature ovarian failure, and hyperprolactinemic anovulation disorders.
Endometriosis, a condition characterized by abnormal growth of endometrial...
Hormonal Control of the Ovarian Cycle01:30

Hormonal Control of the Ovarian Cycle

The ovarian cycle is meticulously regulated by the hypothalamic-pituitary-gonadal axis. This cycle orchestrates the release of a mature oocyte, essential for reproduction.
Before puberty, the hypothalamus releases GnRH in a low frequency, low amplitude pulsatile manner. This along with the immature hypothalamic-pituitary-gonadal axis activity, results in low estrogen levels and the absence of a fully functional ovarian cycle.  At puberty, GnRH secretion increases in both frequency and...

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Related Experiment Video

Updated: Jul 3, 2026

Fertility Preservation in Patients with Severe Ovarian Dysfunction
12:03

Fertility Preservation in Patients with Severe Ovarian Dysfunction

Published on: March 25, 2021

[Premature ovarian failure: which approaches?].

J Belaisch-Allart1, J-M Mayenga, I Grefenstete

  • 1Service de gynécologie-obstétrique et médecine de la reproduction, centre hospitalier des Quatre-Villes, Site-de-Sèvres, 141, Grande-Rue, 92318 Sèvres cedex, France. jbelaisch@promptomail.com

Gynecologie, Obstetrique & Fertilite
|July 29, 2008
PubMed
Summary

Premature ovarian failure (POF) affects many women, with unknown causes in most cases. Fertility options are limited, often requiring assisted reproductive technologies or alternative paths to happiness.

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Fertility Preservation Through Oocyte Vitrification: Clinical and Laboratory Perspectives
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Fertility Preservation Through Oocyte Vitrification: Clinical and Laboratory Perspectives

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Related Experiment Videos

Last Updated: Jul 3, 2026

Fertility Preservation in Patients with Severe Ovarian Dysfunction
12:03

Fertility Preservation in Patients with Severe Ovarian Dysfunction

Published on: March 25, 2021

Fertility Preservation Through Oocyte Vitrification: Clinical and Laboratory Perspectives
08:46

Fertility Preservation Through Oocyte Vitrification: Clinical and Laboratory Perspectives

Published on: September 16, 2021

Area of Science:

  • Reproductive endocrinology
  • Gynecology
  • Genetics

Context:

  • Premature ovarian failure (POF) affects 1 in 10,000 women under 20, 1 in 1,000 under 30, and 1% under 40.
  • The etiology of POF remains unknown in 80% of cases, excluding Turner syndrome.
  • Spontaneous conception rates in POF patients are low, ranging from 3-10%.

Purpose:

  • To outline the prevalence, unknown etiology, and low fertility rates associated with premature ovarian failure.
  • To discuss the limited success of ovarian stimulation in POF patients.
  • To present alternative fertility options and the necessity of psychological support for women with POF.

Summary:

  • POF diagnosis is confirmed when ovarian stimulation typically fails.
  • Fertility options include oocyte/embryo donation, adoption, or focusing on life as a couple.
  • Psychological management is crucial for all patients diagnosed with POF.

Impact:

  • Highlights the significant challenges faced by women with premature ovarian failure.
  • Emphasizes the need for comprehensive patient counseling and support.
  • Informs clinical practice regarding fertility management and psychological care for POF patients.