Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Oogenesis

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...

Ovarian Cycle

Ovarian Cycle

The menstrual cycle includes a critical component known as the ovarian cycle, which undergoes two main phases each month—the follicular phase and the luteal phase. The follicular phase is variable and averaging around 14 days. Ovulation, triggered by a surge in luteinizing hormone (LH), marks the transition between the two phases. The second phase, the luteal phase, is relatively consistent, lasting approximately 14 days, and is marked by the activity of the corpus luteum. While a cycle length...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

The Effect of Acupuncture in Women with Polycystic Ovary Syndrome Undergoing in vitro Fertilization: A Systematic Review and Meta-Analysis.

Expert reviews in molecular medicine·2026

Same author

Intraovarian Platelet-Rich Plasma for Women with Diminished Ovarian Reserve: A Systematic Review and Meta-Analysis.

Journal of clinical medicine·2026

Same author

Development and validation of a nomogram for predicting ectopic pregnancy in patients receiving double fresh cleavage stage embryo transfer.

Scientific reports·2025

Same author

Impact of intrauterine fluid accumulation on embryo transfer outcomes among patients with previous cesarean section.

European journal of obstetrics, gynecology, and reproductive biology·2025

Same author

Profiling the metabolome of adenomyosis-associated infertility patients to predict the pregnancy outcome of frozen embryo transfer.

Frontiers in endocrinology·2025

Same author

Efficacy and safety of autologous adipose tissue-derived stromal vascular fraction in patients with premature ovarian insufficiency: protocol for a single-centre randomised controlled trial.

BMJ open·2025

Search research articles

Related Experiment Video

Updated: Jun 19, 2026

OP-IVM: Combining In vitro Maturation after Oocyte Retrieval with Gynecological Surgery

OP-IVM: Combining In vitro Maturation after Oocyte Retrieval with Gynecological Surgery

Published on: May 9, 2021

Intraperitoneal bleeding following transvaginal oocyte retrieval.

Xiumei Zhen¹, Jie Qiao, Caihong Ma

¹Department of Obstetrics and Gynecology, Peking University, Third Hospital, Beijing, China.

International Journal of Gynaecology and Obstetrics: the Official Organ of the International Federation of Gynaecology and Obstetrics

|November 3, 2009

Summary

Transvaginal oocyte retrieval (TVOR) can cause intraperitoneal bleeding. Younger patients with lower body mass index and specific ovarian responses face higher risks, necessitating careful patient selection and monitoring.

Related Experiment Videos

Last Updated: Jun 19, 2026

OP-IVM: Combining In vitro Maturation after Oocyte Retrieval with Gynecological Surgery

OP-IVM: Combining In vitro Maturation after Oocyte Retrieval with Gynecological Surgery

Published on: May 9, 2021

Area of Science:

Reproductive Medicine
Gynecological Surgery
Infertility Treatment

Background:

Transvaginal oocyte retrieval (TVOR) is a key procedure in assisted reproductive technologies.
Intraperitoneal bleeding is a rare but significant complication of TVOR.

Observation:

A retrospective review analyzed 10,251 TVOR cycles between 2004 and 2008.
22 patients (0.2%) experienced intraperitoneal bleeding, with 5 severe cases requiring surgical intervention.

Findings:

Significant risk factors for bleeding included lower body mass index and a higher number of oocytes retrieved.
Severe bleeding was associated with younger age, lower BMI, prior surgery, and moderate ovarian response.
Mild bleeding was linked to younger age and high ovarian response.

Implications:

Identifying patients at risk for intraperitoneal bleeding can improve TVOR safety.
Further research may refine patient selection criteria and monitoring protocols for TVOR.