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Related Concept Videos

Infertility in Females01:28

Infertility in Females

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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...
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Infertility in Males01:23

Infertility in Males

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Male infertility affects millions of couples worldwide, arising from various factors that impact different stages of the reproductive process. An endocrine imbalance resulting from conditions like hypogonadism, Klinefelter syndrome, or pituitary disorders can disrupt hormone levels and reduce sperm production. Testicular defects, such as tumors, cryptorchidism, atrophic testes, abnormal sperm morphology, and low sperm count or motility, may arise due to genetic factors, structural...
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Oogenesis02:07

Oogenesis

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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...
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In Vitro Fertilization01:24

In Vitro Fertilization

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In vitro fertilization (IVF) is a form of assisted reproductive technology where an egg is fertilized with sperm in a controlled laboratory environment before transferring the resulting embryo into the uterus. This process is designed to help individuals and couples experiencing difficulties conceiving.
The IVF process begins with ovarian stimulation, during which reproductive endocrinologists prescribe hormonal medications to stimulate the ovaries to produce multiple eggs instead of the single...
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Spermatogenesis01:41

Spermatogenesis

91.0K
Spermatogenesis is the process by which haploid sperm cells are produced in the male testes. It starts with stem cells located close to the outer rim of seminiferous tubules. These spermatogonial stem cells divide asymmetrically to give rise to additional stem cells (meaning that these structures “self-renew”), as well as sperm progenitors, called spermatocytes. Importantly, this method of asymmetric mitotic division maintains a population of spermatogonial stem cells in the male...
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Fertilization01:38

Fertilization

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During fertilization, an egg and sperm cell fuse to create a new diploid structure. In humans, the process occurs once the egg has been released from the ovary, and travels into the fallopian tubes. The process requires several key steps: 1) sperm present in the genital tract must locate the egg; 2) once there, sperm need to release enzymes to help them burrow through the protective zona pellucida of the egg; and 3) the membranes of a single sperm cell and egg must fuse, with the sperm...
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Updated: May 4, 2026

Collection of Human Follicular Fluid, Follicle Somatic Cells, and Immature Oocytes from Individuals Undergoing In Vitro Fertilization
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[Infertility in women: latest developments].

T Strowitzki1

  • 1Abteilung für Gynäkologische Endokrinologie und Fertilitätsstörungen, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 440, 69120, Heidelberg, Deutschland, thomas_strowitzki@med.uni-heidelberg.de.

Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz
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PubMed
Summary
This summary is machine-generated.

Female infertility remains a significant concern, with new diagnostic and treatment options emerging beyond assisted reproductive technologies. Optimizing individual fertility through addressing endocrine and metabolic factors is gaining importance.

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Area of Science:

  • Reproductive Medicine
  • Gynecology
  • Infertility Research

Context:

  • Female infertility incidence has remained static since the early 1990s, necessitating updated diagnostic and therapeutic strategies.
  • Advances in basic research have introduced novel approaches beyond established methods like in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI).

Purpose:

  • To review current knowledge on female infertility.
  • To summarize modern diagnostic and treatment concepts.
  • To highlight emerging strategies for fertility optimization.

Summary:

  • Chlamydial infection is identified as a primary cause of tubal infertility.
  • Correction of endocrine and metabolic disorders, including thyroid dysfunction and glucose metabolism issues, is crucial.
  • Surgical interventions and lifestyle modifications are key components of modern fertility management.

Impact:

  • This review provides a comprehensive overview of contemporary female infertility management.
  • It emphasizes the growing significance of personalized fertility optimization alongside assisted reproductive techniques.
  • The findings aim to guide clinicians and researchers toward improved patient outcomes in infertility care.