Related Experiment Video
Updated: May 7, 2026

Herbs-Partitioned Moxibustion on the Navel in a Rat Model of Primary Dysmenorrhea with Cold Coagulation and Blood Stasis
Published on: October 4, 2024
Menorrhagia, active component service women, U.S. Armed Forces, 1998-2012
Abstract:
Menorrhagia (excessive menstrual bleeding) is relatively common among women of reproductive age and may be caused by a wide range of different conditions. Menorrhagia symptoms can interfere with work and quality of life and may result in iron deficiency anemia due to chronic blood loss. This analysis of active component service women of the U.S. Armed Forces found that, during the surveillance period of 1998 through 2012, the crude incidence rate of menorrhagia was 6.2 cases per 1,000 person years. Annual incidence rates rose steadily throughout the period. Compared to their respective counterparts, rates were highest in women who were aged 40 to 49 or were of black, non-Hispanic ethnicity. Among women with menorrhagia whose records documented co-ocurring conditions, the most common such conditions were uterine disorders (e.g., fibroids) and ovarian cysts. Less than one percent of cases had underlying bleeding disorders documented. Of women hospitalized with the diagnosis of menorrhagia, 79 percent underwent hysterectomy during their hospitalizations. Limitations of the analysis and possible future studies are discussed.
Related Concept Videos
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...
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.
Disorders of the Female Reproductive System
The Menstrual Cycle
The menstrual phase occurs from days 1 to 5 and involves the shedding of the stratum functionalis, as a uterine...
Menopause
Secretory Phase
Following ovulation, the corpus luteum, a temporary endocrine structure, produces progesterone and estrogens. These hormones stimulate the growth and coiling of endometrial...
