Blog of the Society for Menstrual Cycle Research

Exercise for dysmenorrhea?

July 26th, 2010 by Elizabeth Kissling

Women have long been advised that exercise is among the best pain relievers for painful periods. But a new Cochrane Review (also published in July, 2010, issue of Obstetrics & Gynecology) indicates that research confirming that advice is inconclusive.

Yet, the data on exercise and dysmenorrhea are quite limited, and only one clinical trial met review standards. The main outcome measure was the change in The MOOS Menstrual Distress Questionnaire (MDQ) after three cycles of treatment. The MDQ is commonly used in menstrual cycle research (and also commonly criticized). Exercise was found to improve MDQ scores within three cycles. This Cochrane review offers some preliminary, although not robust, evidence for the effectiveness of exercise in the treatment of dysmenorrhea.

So if exercise helps your period pain, keep it up!

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That Which Does Not Kill Me Makes Me Stronger

March 24th, 2010 by Elizabeth Kissling

Cartoon of women with cramps

London newspaper The Telegraph reports on the development of a new medical treatment for dysmenorrhea, or painful periods. The article contains very little information about the new pill — most of the article describes the variety of misery some women experience with menstruation. The only information about the new medication is that the drug blocks vasopressin, a hormone involved in regulating uterine contractions and thus a cause of menstrual cramping.

But I was struck by this sentence in the second paragraph:

But now [women with painful periods] might no longer have to soldier on stoically after researchers have developed a pill which could put an end to the root cause of their discomfort.

See that? Women with cramps aren’t whiners or crybabies or just making excuses. They’re hard-working troupers who soldier on stoically despite being miserable.

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New Research Indicates Link between Early Menarche and Endometriosis

March 11th, 2010 by Elizabeth Kissling

Drawing of uterine cross-section indicating endometriosis.In a controlled study of 268 Australian women with surgically confirmed moderate-to-severe endometriosis (cases) and 244 women without endometriosis (controls), researchers found that characteristics of a woman’s early menstrual cycles were associated with later development of endometriosis. Data showed those who did not start their menstrual cycle until after they turned 14 had a significantly reduced risk of later developing endometriosis.

Duration of the cycle, intensity of flow, and preferred choice of menstrual product showed no association with endometriosis.

The results are published in the American Journal of Obstetrics and Gynecology, December 2009. You can read the abstract here.

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Pain Don’t Hurt

February 25th, 2010 by Elizabeth Kissling

A small study recently published in the European Journal of Pain found that women’s sensitivity to pain does not appear to be increased by the menstrual cycle. The study did not assess perceptions of menstrual pain, but measured pain sensitivity to cold pressor, heat, and ischemic pain at different points throughout the cyle: the early follicular, late follicular, and luteal phases. Men were also tested three times, controlling for number of days between testing sessions. The researchers found that the phase of the menstrual cycle did not affect women’s pain sensitivity, nor did it affect gender differences in pain. (Contrary to popular belief, research indicates that in general, healthy women are more sensitive to pain than healthy men.)

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Best pain relievers for cramps

January 20th, 2010 by Elizabeth Kissling

A new meta-analysis of previous research on acetaminophen (also known as paracetamol outside the U.S.) vs. NSAIDs (nonsteroidal anti-inflammatory drugs) for treatment of menstrual pain indicates that NSAIDs are more effective. NSAIDs include aspirin, ibuprofen, and naproxen sodium, which are all readily available over-the-counter in the U.S. The research pooled results from 73 randomized controlled trials comparing the effectiveness and safety of NSAIDs vs. placebo, vs. acetaminophen, and each other.

The results don’t indicate whether one NSAID is any better than any other for menstrual pain. Researcher Jane Marjoribanks, M.D., Cochrane Menstrual Disorders and Subfertility Group in Auckland, New Zealand, says they work by reducing prostaglandins, the substance manufactured by the uterine lining to help the uterus contract and expel menstrual fluid.

“Research has shown that women with dysmenorrhoea have high levels of prostaglandins, hormones known to cause cramping abdominal pain. …NSAIDs are drugs which act by blocking prostaglandin production.”

The study was published today in the Cochrane Database of Systematic Reviews.


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New Treatment for Uterine Fibroids

January 18th, 2010 by Elizabeth Kissling

Illustration of radiofrequency ablation technique to remove fibroids.Tuesday’s Wall Street Journal reports a new surgical technique for relief of uterine fibroids is currently being tested at six medical centers in the U.S., along with two in Mexico and one in Guatemala. Presently, the only sure cure is hysterectomy, because fibroids sometimes grow back when suppressed with drugs or removed individually.

Fibroids are benign growths in the uterus that are estimated to occur in as many as 70% of women. Fibroids are often asymptomatic; many women don’t even know they have them. But fibroids can become large and painful, and can cause heavy menstrual bleeding. Sometimes they can grow large enough to interfere with other organs.

The new technique under investigation is called radiofrequency ablation. The procedure involves three small incisions: one for the laproscopic camera so the surgeon can see inside the abdomen, a second for an intra-abdominal utrasound probe to determine the size and location of fibroids, and a third for the Halt device, a needle electrode that penetrates the fibroid and burns the cells, which are eventually reabsorbed by the body. The device also cauterizes the incision to minimize bleeding.

In early tests outside the U.S. with 70 women, 90% were satisfied with the results. It is unknown whether fibroids destroyed with this technique will grow back.


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The cure for all things menstrual?

December 24th, 2009 by Chris Hitchcock

A recent press release from the American College of Obstetricians and Gynecologists announces that Hormonal Contraceptives Offer Benefits Beyond Pregnancy Prevention. This is in the same vein as similar articles published over the years about “non-contraceptive benefits of the pill” – a laundry list of the many benefits women may obtain by using hormonal contraception. It’s not clear how they should be used by practicing obgyn’s. One use is certainly as additional talking points to convince women who are cautious or reluctant to replace their body’s own menstrual physiology with a pharmaceutical product.

I haven’t been able to read the full document (for some reason my university access seems to only find the first page of the full document), but it appears that, like previous reviews I have read, it is a biased list, including benefits but not risks. Perhaps what is most in common is the sense that a spontaneous menstrual cycle is somehow suspect, that fluctuations over time are unnatural, and that pharmaceutical control is a good solution.

Teenagers and Menstrual Pain

December 14th, 2009 by Elizabeth Kissling
Cover of 1963 edition of "Growing Up and Liking It" booklet from Personal Products, Inc.

Cover of 1963 edition of "Growing Up and Liking It" booklet from Personal Products, Inc.

A recently published population-based study of teens in Australia found that menstrual pain is the norm among young women: Typical menstruation in adolescence includes pain (93%), cramping (71%), premenstrual symptoms (96%) and mood disturbance (73%).

This surprises me; I (mistakenly) thought the literature showed painful periods and PMS to be more common in the thirties, and fairly infrequent in the teen years. I can’t help but wonder if these reports of such high levels of pain and PMS are influenced by the pervasive cultural representations of periods as unpleasant and/or painful. It’s noteworthy that only 1% of the girls surveyed reported periods with no pain and no symptoms, and  78% consider their periods to be ‘normal’ most of the time. Assuming those other 22% significantly overlap with the 33% who experienced pain severe enough to consult a physician, I infer that most girls think painful periods are normal.

Please note that I am NOT suggesting that girls are lying about pain or that their period pain is “all in their heads” or psychosomatic; I am merely suggesting that our bodily experience and our perceptions of our bodies always take place in specific cultural and historical contexts. It may also be that dietary and environmental changes have influenced the rise in menstrual pain these researchers document.

(To see more editions of “Growing Up and Liking It”, visit the Museum of Menstruation.)

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Adenomyosis: Under-diagnosed cause of pelvic pain

December 3rd, 2009 by Elizabeth Kissling

adenomyosis1.jpg (JPEG Image, 250x297 pixels)A couple of months ago, we wrote about Kate Seear’s research findings that menstrual etiquette is a frequent cause of delayed diagnosis of endometriosis. In related news, medical researchers writing in a recent issue of the Journal of Obstetrics and Gynaecology have found that adenomyosis, the presence of endometrial tissue embedded within the muscular wall of the uterus, is under-diagnosed.

S. Basak and A. Saha, the study’s authors, examined the data of more than 1000 hysterectomies performed for pelvic pain or abnormal uterine bleeding (in other words, hysterectomies for cancer and uterine prolapse were excluded from the data set) in the UK in a three-year period. In 26 of those cases, adenomyosis was identified post-surgery via tissue analysis.

The medical histories in these 26 cases were then examined more closely. The majority of the women had sought medical attention for menorraghia (excessive menstrual bleeding) and dysmenorrhea (painful periods). Eleven of the women’s uteruses were enlarged, and 16 underwent pelvic ultrasound exams. But adenomyosis was suspected clinically in only one case; the others were identified as uterine fibroids (five cases) or “dysfunctional uterine bleeding” (20 cases).

Examination of patients’ case histories found that the medical consultations focused on menstrual flow. The researchers found that other symptoms of adenomyosis, such as pelvic pain, pain during intercourse, painful periods, and feelings of pelvic pressure, were not adequately addressed – even when examination or ultrasound findings indicated an enlarged uterus.

Basak and Saha ask,

Does failure of preoperative suspicion of adenomyosis matter? In the absence of an accurate diagnosis, appropriate treatment is unlikely to be offered, or may be delayed. This results in failure of treatment and continued suffering.

To identify adenomyosis earlier, they recommend more careful discussion with patients of pelvic symptoms, MRI, and follow-up care with women who elect for conservative management of their symptoms. Once again, open communication about all aspects of menstruation isn’t about challenging taboos just for the sake of challenge; it’s critical for women’s health and well-being.

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Is Menstruation a Disability?

November 19th, 2009 by Elizabeth Kissling

I think few people would consider menstruation per se a disability, with exceptions for menorrhagia and unusually painful periods. But I’ve been reading a bit in the field of disability studies lately, for both professional and personal interest, and starting to think about disability differently. I’m currently reading Susan Wendell’s The Rejected Body and finding it especially powerful and provocative.*

She writes of disability as social construction; that is, disability cannot be defined solely in biomedical terms but must be considered in terms of a person’s social, physical, and cultural environment. A person is disabled when they live in a society that is “physically constructed and socially organized with the unacknowledged assumption that everyone is healthy, non-disabled, young but adult, shaped according to cultural ideals, and, often, male” (p. 39).

A feminist philosopher by training, Wendell points out that feminists have long sustained criticisms that the world has been designed for the convenience of men and male bodies.

The Etiquette of Menstrual Concealment Preserves Pain as well as Secrecy

October 9th, 2009 by Elizabeth Kissling

abdominal_painIt’s great that menstrual taboo and stigma is ‘over’, as Amanda Fortini informed us earlier this week (see Chris’ post about the menstrual activism shitstorm across several blogs this week). Now maybe all those women suffering from debilitating endometriosis can get some relief.

Kate Seear’s newly published study about the diagnostic delay in treating endometriosis finds that menstrual etiquette rules and the culture of concealment are among the most profound causes of the delay between the first experience of menstrual pain and the diagnosis of endometriosis, which then opens avenues for relief through either surgery or medical treatment. The delay is non-trivial: research estimates an average delay of 8 years in the UK and 11 years in the US. Reasons for the delay include minimizing of menstrual pain by doctors, family members, and others, and women’s inability to distinguish between ‘normal’ menstrual pain and abnormal pain, and, Seear argues, the social sanctioning women experience when they talk about menstruation in general or menstrual pain in particular.

Copyright restrictions prevent me from re-publishing the article that details her findings and analysis, but here is the abstract:

Readers should note that statements published in re: Cycling are those of individual authors and do not necessarily reflect the positions of the Society as a whole.