Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Ovarian function after the menarche and hormonal contraception.

A Borsos1, L Lampé, A Balogh

  • 1Department of Obstetrics and Gynecology, Medical University of Debrecen, Hungary.

International Journal of Gynaecology and Obstetrics: the Official Organ of the International Federation of Gynaecology and Obstetrics
|October 1, 1988
PubMed
Summary

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Investigation of alpha-particles interaction with zirconium: Cross-section measurements and isomeric cross-section ratios.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine·2026
Same author

Activation cross-sections of <sup>3</sup>He-particle induced nuclear reactions on natural silver up to 27 MeV.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine·2025
Same author

HIV and SARS-CoV-2 co-infection: cross-sectional findings from a German 'hotspot'.

Infection·2021
Same author

Investigation of activation cross-sections of deuteron induced reactions on ruthenium up to 50 MeV.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine·2020
Same author

Experimental investigation and theoretical evaluation of proton induced nuclear reactions on nickel.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine·2020
Same author

Author Correction: Proteomic and Transcriptomic Changes in Hibernating Grizzly Bears Reveal Metabolic and Signaling Pathways that Protect against Muscle Atrophy.

Scientific reports·2020

Regular ovulation in adolescent females typically occurs 2 years after menarche. This understanding aids in determining the appropriate timing for initiating hormonal contraception based on physiological markers.

Area of Science:

  • Reproductive Endocrinology
  • Adolescent Gynecology

Background:

  • Menarche marks the onset of reproductive capability in females.
  • Understanding ovulation timing post-menarche is crucial for reproductive health and contraception.
  • Adolescent menstrual cycles often exhibit irregularity initially.

Purpose of the Study:

  • To determine the timing of regular ovulation following menarche.
  • To inform the appropriate use of hormonal contraception in adolescent females.
  • To investigate the physiological changes in menstrual cycles during adolescence.

Main Methods:

  • Collected early morning urine samples from 51 perimenarcheal girls over 2 years.
  • Measured estrone and pregnanediol-3-glucuronide levels.
  • Utilized a scoring system based on somatic data and hormonal cytology, alongside basal body temperature tracking.
Keywords:
BiologyClinical ResearchContraceptionContraceptive Methods--indicationsFamily PlanningMenarcheMenstrual Cycle--changesMenstruationOral Contraceptives--indicationsOvulationPhysiologyPubertyReproductionResearch Methodology

Related Experiment Videos

Main Results:

  • Menstrual cycle length shortened from 35-40 days to 28 days by the 23rd-25th cycle.
  • Ovulation was demonstrable in over 50% of patients after the 20th cycle.
  • A somatic data score greater than 16 indicated predictable regular ovulation.

Conclusions:

  • Regular ovulation can be anticipated approximately 2 years after menarche.
  • Hormonal contraception may be safely initiated 2 years post-menarche for girls with a somatic score >16 and confirmed ovulation.
  • This study provides a framework for timing contraceptive interventions based on adolescent female physiology.