Related Experiment Video
Updated: Jul 2, 2026

Rodent Estrous Cycle Monitoring Utilizing Vaginal Lavage: No Such Thing As a Normal Cycle
Published on: August 30, 2021
Variation in the menstrual characteristics in adolescents of West Bengal
1Department of Anthropology, University of Calcutta, 35 Ballygunj Circular Road, Kolkata 700019, India.
Introduction:
Like other biological phenomena, menstrual characteristics also vary with different age groups, socioeconomic status, and lifestyles. This study aimed to find out the variation in the menstrual characteristics among adolescents of different age groups, and the significant predictors of a menstrual outcome.
Methods:
260 adolescent Bengali-speaking Hindu girls of three different age groups (early, middle and late adolescence) were selected from the district of 24 Parganas (North), West Bengal, India. Data on the socioeconomic conditions and menstrual characteristics were collected via a pre-tested questionnaire.
Results:
Significant differences exist between these three age groups in characteristics such as irregularity in the cycle, skipping of the cycle, duration of menstrual discharge, absenteeism from school because of pain and discomfort related to menstruation, and the prevalence of white discharge. Logistic regression showed that socioeconomic variables such as the occupations of the parents and educational levels of the parents and the subjects have a significant relationship with some menstrual outcomes (irregularity in the menstrual cycle, premenstrual problems, and duration of menstrual discharge) and with consultation of doctors due to some morbid conditions. Some of the other menstrual characteristics such as duration of menstrual discharge, number of days of peak discharge and absence of pain at the time of menstrual discharge, can be significantly predicted by age group of the individuals and other menstrual features.
Conclusion:
Menstrual characteristics vary among the adolescents of different age groups, and some of the menstrual characteristics can be predicted by some socioeconomic factors and other menstrual variables.
Related Concept Videos
Hormonal Regulation of the Menstrual Cycle
At puberty, GnRH begins a pulsatile release pattern, which triggers the anterior pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The frequency and amplitude of GnRH pulses vary across the menstrual cycle, with faster pulses favoring LH release and slower pulses favoring FSH release.
The Menstrual Cycle
The menstrual phase occurs from days 1 to 5 and involves the shedding of the stratum functionalis, as a uterine...
Menses Phase
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...
Variation: Normal Distribution, Range, and Standard Deviation
Disorders of the Female Reproductive System
Signs of Puberty
