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into to menstrual cramps by stefani

Menstrual Cramps: An Introduction

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Tomorrow I will post an article on the relationship between a paleo diet and menstrual cramps, but it is important first to understand what menstrual cramping is in and of itself.   What are menstrual cramps, and where do they come from?  Why are they so painful, and why do so many women suffer them?

Who has menstrual cramps

Menstrual cramps of some degree affect more than an estimated fifty percent of women.  Among these, up to fifteen per cent describe their menstrual cramps as severe.  Over ninety percent of  adolescent girls today report having menstrual cramps.  Cramps are their worst in a woman’s younger years and almost always peter out into her thirties.   This is evidenced by the fact that painful menstruation is the leading cause of lost time from school and work among women in their teens and 20s.

The two kinds of cramping

In primary dysmenorrhea, there is no underlying gynecologic problem causing the pain.   It is marked by abdominal pain first and foremost, but abdominal discomfort, irregular digestion, nausea, back pain, and headaches often accompany it, too.  Cramping may begin a day or two before menstruation, and it endures for the first few days of bleeding.  Menstrual cramping is commonly conflated with PMS, but they are in fact two separate medical phenomena.

In each woman, primary menstrual cramping may begin as early as six months to a year following menarche (the beginning of menstruation).  However, menstrual cramps typically do not begin until ovulatory menstrual cycles  occur, and ovulation normally does not beginning happening for some time after menarche.  For this reason, an adolescent girl may not experience dysmenorrhea until months to years following the onset of menstruation.  Some women experience cramping at different periods of their lives.  Modern medicine does not sufficiently recognize this phenomena or investigate it’s causes, but periodic cramping is probably induced by dietary, stress, and lifestyle fluctuations.

In secondary dysmenorrhea, on the other hand, some underlying abnormal condition contributes to the menstrual pain. Secondary dysmenorrhea can result from endometriosis, uterine fibroids, adenomyosis, ovarian cysts, having a copper IUD, pelvic inflammatory disease, PMS, or sometimes even STIs.

What causes menstrual cramps?

The origin of menstrual cramping is in the physiological changes that take place each month in the menstrual cycle.  Each month, the inner lining of the uterus (the endometrium) builds up in preparation for a possible pregnancy.   This occurs in the first two weeks of the cycle, and is called the follicular phase.  At the start of week three, the woman ovulates.  After ovulation, if the egg is not fertilized, no pregnancy will result and the current lining of the uterus becomes superfluous. The woman’s estrogen and progesterone hormone levels thus decline, and the lining of the uterus swells.  It is eventually shed in the form of menstrual flow, and it is replaced by a new lining in the next monthly cycle.

 

When the old uterine lining begins to break down, inflammatory mediators called prostaglandins are released. Prostaglandins regulate muscle contraction and cause the muscles of the uterus to contract. When the uterine muscles contract, they constrict the blood supply to the endometrium. This contraction blocks the delivery of oxygen to the tissue of the endometrium which, in turn, breaks down and dies.   This occurs on the first day of menstruation.  After the death of this tissue, the uterine contractions literally squeeze the old endometrial tissue through the cervix and out of the body by way of the vagina.  This is why women who use diva cups  often discern physical tissue with their menstrual discharge.  It is in fact the dead tissue of the old endometrium.

Why are cramps so painful?

Menstrual cramps are caused by the uterine contractions that occur in response to prostaglandins and other chemicals. The cramping sensation is intensified when clots or pieces of bloody tissue from the lining of the uterus pass through the cervix, especially if a woman’s cervical canal is narrow.

The difference between menstrual cramps that are more painful and those that are less painful is a direct correlation with a woman’s prostaglandin levels. Women with menstrual cramps have elevated levels of prostaglandins in the endometrium (uterine lining) when compared with women who do not experience cramps. Menstrual cramps are actually quite similar to those a pregnant woman experiences when she is given prostaglandin as a medication to induce labor.

In a normal-functioning woman, menstrual cramps occur at a given pressure and frequency.   The pressure is between 50 and 80 mmHg, they last around twenty seconds, and the frequency is ~1-4 contractions per ten minutes.  In women who experience painful cramping, this pressure can rise to 400 mmHg, and the contractions might last up to ninety seconds.

Prostaglandin activity in menstruation

Prostaglandins are eicosanoids, a class of molecules involved in the signalling of inflammation.   Specifically, prostaglandins are lipids involved in chemical signalling, but they are not endocrine hormones.  Endocrine hormones are produced from a discrete location and then sent out to the rest of the body.  Prostaglandins instead exhibit paracrine function, which means that they are produced locally and for local use all throughout the body.  In menstrual cramps,  therefore, prostaglandins are produced out of essential fatty acids in cells surrounding the uterine tissue.   Then they signal to surrounding muscle tissues to contract.  If prostaglandins are produced in excess, then the abdominal muscles receive a signal to contract that’s excessively strong, and the contractions will become strong enough for it to be painful.  Prostaglandins also affect intestinal tissue, which is why many women experience diarrhea, constipation, or changed bowel movements during the first days of menstruation.

Conventional  cramping treatment

Health professionals sometimes make holistic recommendations.  Unfortunately, they’re either obvious or ineffective, so they don’t do much for women who suffer cramping.  For example, women are told to lose weight and to quit smoking.   (Duh.)  They are also told to eat a “healthy diet” full of fruit, vegetables, and plenty of fiber, “which is particularly useful since it cleanses the body of excess estrogen (which can lead to heavier and more painful periods and cramps.”    Some doctors also recommend sleep and exercise, which are two recommendations I can actually get behind.

More typical reactions to cramping involve the medical cabinet.  For mild cramps women are advised to take aspirin or acetaminophen.  When acetaminophen is coupled with a diruetic, such as in diurex, midol, or pamprin, it is supposed to be more effective, possibly because it accelerates the removal of prostagalandins.  For more severe cramps, women are told to take NSAIDs.  NSAIDs lower the production of prostalglandin.  Ibuprofen, naproxen, and ketoprofen are all NSAIDs that do not require prescritpions.  NSAIDs that doctors proscribe with a prescription are mefenamic acid and meclofenamate.  The final recourse for particularly painful cramping is birth control.  Birth control pills, in preventing ovulation and the regular cycling of estrogen and progesterone levels, sometimes prevents menstruation wholesale.  When women still have a monthly period, the prostalglandin levels are typically normalized and the menstrual flow lightens.    It goes without saying that these options treat the symptom, but not the cause of menstrual cramps.  Without paying attention to what dietary and lifestyle factors are affecting inflammation, pain, prostalglandin and hormone imbalances, cramps will never go away.

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Managing director of Paleo for Women and author of Sexy by Nature.

10 Comments

  1. An awesome outline of menstrual cramps. Look forward to your next post.

    • Yes, Julianne! I knew there was another woman out there I wanted to link to! Thank you for reminding me. !

  2. hi stefani,

    thanks for all the great info and writing. i hope you might lend me some advice here.

    i went primal january 2012 and started having pelvic pain in february (not that i think the two are necessarily connected). i was just diagnosed with adenomyosis and am trying to gather as much info as i can regarding holistic treatment. western docs prescribe pain meds and hysterectomy in the most severe cases (fortunately, mine is mild at this point).

    could you lend any info regarding paleo eating and adenomyosis? i have been reading a lot of contradictory info regarding diet, specifically regarding saturated fats and prostaglandin consumption. many endometriosis diets (from what i understand, this diet can have success with adenomyosis as well) specify very low fat intake. i had planned to become more strictly paleo rather than primal (cutting out dairy) but now i am confused about all the coconut oil and red meat i typically eat.

    my understanding of the condition’s process leads me to seek a diet that reduces inflammation, helps reduce and rid excess estrogens and limits prostaglandin. is paleo not a good fit?

    thanks so much for any advice.

    best,
    katie

    • Medical advice typically advises against saturated fats because they form the material out of which prostaglandins are manufactured…which is to say, fatty acids. That does not make them inherently inflammatory, however. We only make prostaglandins if we are receiving “help me, I need inflammation!” signals from our tissues, as is the case with endometriosis and adenomyosis.

      I’d recommend cutting the dairy if you’re worried about inflammation, at least at first. You can add it in back afterwards and see if it ends up being something that gives you trouble or not.

      Paleo is the least inflammatory diet, in my opinion. High sugar, omega 6 vegetable oils, fried foods, and phytoestrogens are your big enemy. But whole foods… you cannot go wrong with whole foods. :)

    • Hello Katie,

      Would you be prepared to share with me any/all that you have learnt in relation to adenomyosis and approaching treatment naturally?

      I am 28 years old, recent ultrasound indicated adenomyosis.

      No interest in drugs or surgery, looking for alternatives and wish there was more information available to give hope.

      I would appreciate anything you are prepared to share.

      Thank you.

  3. Pingback: Severe Cramps and Other Monthly Period Symptoms – Simple Tips For Using Yoga to Have an Easy Period | MYHEALTHCAREBLOG.NET

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  6. I am 29 years old and have been getting painful periods since I was 13. I experience severe pain in my lower abdomen and lower back, vomiting, nausea, diarrhea and have almost fainted a few times. Last year, I had to visit the emergency room 3 times. I’ve tried Premenstrual Tension from BrainSync Technology and I saw that if I listen to this for about 3-4 days before the strike I am more present more able to handle myself… and this helped immensely. Give it a try here. This has helped a lot.

  7. Every morning I would be in the bathroom constipated. This was happening for 4 weeks. I tried drinking Gatorade, and milk but I was still constipated and these methods were not working. I made an appointment with my doctor after this “constipation” started to disturb my work performance. After having a series of tests done, I was “back- upped”. The nurse told me about the Lady Soma Detox and within a couple of days, I was not constipated anymore – and been feeling regular ever since. You have to try everything. . .

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