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Related Concept Videos

Menses Phase01:18

Menses Phase

The uterine cycle begins with the menstrual phase, which is considered day one of the cycle and typically lasts about five days. This phase is characterized by the degeneration and shedding of the stratum functionalis, the functional layer of the endometrium.
When fertilization does not occur, the corpus luteum deteriorates, causing a significant drop in the levels of estrogen and progesterone in the body. This hormonal decrease triggers the release of prostaglandins, which cause the uterine...
The Menstrual Cycle01:19

The Menstrual Cycle

The menstrual cycle is a recurrent sequence of changes in the uterine endometrium, specifically its functional layer, the stratum functionalis. This cycle prepares the uterus for potential pregnancy. This cycle typically spans 21–35 days, averaging 28 days, and aligns with the ovarian cycle, regulated by fluctuating levels of ovarian hormones, primarily estrogen and progesterone.
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Secretory Phase01:19

Secretory Phase

The secretory phase of the menstrual cycle, spanning from day 14 to 28 in a typical 28-day cycle, is a period of significant physiological changes in the female reproductive system. This phase commences immediately after ovulation and is characterized by the preparation of the endometrium for potential embryo implantation.
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Amebiasis01:28

Amebiasis

Entamoeba histolytica, a protozoan parasite, is responsible for intestinal and extraintestinal amebiasis. Though a significant proportion of infections remain asymptomatic, approximately 50 million individuals annually are estimated to present with clinical disease, resulting in up to 100,000 deaths globally. The disease burden is disproportionately high in regions with lower socioeconomic status, such as parts of India, Africa, Mexico, and Latin America.Etiology and TransmissionThe infective...
Hormonal Regulation of the Menstrual Cycle01:22

Hormonal Regulation of the Menstrual Cycle

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Trichomoniasis

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Related Experiment Video

Updated: Jun 24, 2026

Collection, Isolation, and Flow Cytometric Analysis of Human Endocervical Samples
12:34

Collection, Isolation, and Flow Cytometric Analysis of Human Endocervical Samples

Published on: July 6, 2014

Sexual activity during menstruation: a qualitative study.

Katherine R Allen1, Abbie E Goldberg

  • 1Department of Human Development, Virginia Polytechnic Institute and State University, Blacksburg, 24060, USA. kallen@vt.edu

Journal of Sex Research
|April 8, 2009
PubMed
Summary
This summary is machine-generated.

Young adults

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Area of Science:

  • Sociology
  • Human Sexuality
  • Menstrual Health

Background:

  • Menstruation is a natural biological process often surrounded by cultural taboos.
  • Societal norms and personal beliefs significantly influence attitudes towards sexual activity during menstruation.

Purpose of the Study:

  • To explore young adults' perspectives on sexuality and menstruation.
  • To identify patterns in attitudes and behaviors regarding sexual intercourse during menstruation.

Main Methods:

  • Grounded theory methodology was employed.
  • Qualitative narratives were analyzed from 108 young women and 12 young men.

Main Results:

  • Forty women reported engaging in sexual intercourse during menstruation, often within committed relationships.
  • No participants comfortable with menstrual sex expressed disgust.
  • Seven of nine sexually experienced men reported having had sex with a menstruating partner.

Conclusions:

  • Comfort with menstrual sex is associated with committed relationships and a lack of disgust.
  • Attitudes towards sexual activity during menstruation vary widely among young adults.