Why do some women shake when they orgasm?

Jay Dee

Why do some women shake when they orgasm?

Feb 05, 2016

I had asked on Facebook is anyone had any questions about sex and/or marriage, since I hadn’t gotten an anonymous question in a couple of weeks. Then one of my regular readers and participator sent me this question (among others): Why the shakes and spasms

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Why do some women shake when they orgasm?

I had asked on Facebook is anyone had any questions about sex and/or marriage, since I hadn’t gotten an anonymous question in a couple of weeks.

Then one of my regular readers and participator sent me this question (among others):

Why the shakes and spasms after orgasm?

That sounded like it might have a fun and interesting physiological cause, so I thought I’d tackle it today.

Many women find that they shake, or have spasms after orgasm.  For some, it’s slight, for other’s it’s almost a flailing of limbs, and their husband better watch out.  I’m afraid I can’t find any stats to say how many experience this, but judging by the amount of people asking, I don’t think it’s that rare.

Now, I haven’t seen any studies on this, but as far as I can tell, there seem to be four prevailing theories on why this happens.

Trembling is a sign of a highly increases heart rate

The first is that people often tremble when their heart rate increases radically.  This is most well known when someone is scared.  When we’re scared our hearts start pumping more blood to help us get more energy to our limbs, to run away or to fight, to our senses, so we can see better, hear better.  Basically, it’s a response designed to help us avoid danger.

Now, during sex we aren’t in danger (hopefully), but we do tend to have an elevated heart rate.  Some people’s heart rates increase more than others, and it seems that for some women, it raises so high, it gives the same tremble, thanks to all the natural chemicals being pumped into our blood stream along with the increases heart rate.

So, one way to test this theory would be to check your heart rate (when you regain control of your limbs).  If it’s really high, that might be your reason.

It might be caused by spasming muscles due to prolonged tension

Many women find that they need to clench muscles in order to have an orgasm.  This is what leads to grasping bed sheets, raking fingernails, pulling hair, grabbing their own breasts, etc..  One common muscle to contract is the thigh muscles. For one it’s near the genitals, and so for some women, they just tense up the entire area. Yes, the thigh muscles are the most noticeable, but in the process, they may also be contracting their pelvic floor muscles, and butt muscles, which can lead to increased blood flow, which leads to increased sensation. 

And it’s not necessarily voluntary. In fact, they can be so tense that they should cause pain, except that you are being fed so many natural pain relief hormones that you don’t notice it.

Then, when you do orgasm, you finally let go of the muscle tension, and your legs have been under such high tension for so long, that they start to shake simply from the workout.

Want to check this theory?  Check to see if your thigh muscles are contracted during sex.  If they’re hard as a rock, that’s probably what’s going on.

Your orgasm might be extending into other parts of your body

Orgasms included the rapid contraction and release of muscles in and around your genitals. The larger the orgasm, often the stronger these contractions. Now, for some, it might be that these involuntary rapid contract and release cycles are extending beyond just the muscles surrounding your genitals. For some women, their legs are involved, for others their abs.

An interesting correlation of this is that some women can also have orgasms by working out their ab muscles (leg-lifts and such). These are known sometimes as “core-gasms”.


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Your brain might be overloaded and misfiring

Lastly, it could simply be that your nervous system is just overwhelmed with all the pleasure signals and it doesn’t know what to do with itself. Pleasure and pain use the same mechanisms to tell the brain that something is going on. It’s the same sensors picking up the feeling, and the same system transmitting those feelings.

When we feel in pain, our bodies tend to quickly try to get away from whatever is hurting us, like if you touch a hot pan, your arm jerks your hand away before you can even really process that’s happening.

So, it’s possible that your brain is receiving such strong pleasure signals, that it doesn’t really know how to handle them, and so just starts flailing body parts in an effort to resolve the situation.

So, there you go.  Four reasons why you might shake after you have an orgasm. If you’ve heard of others, let us know in the comments below.

If you have an anonymous question you’d like to have answered, please check out our anonymous Have A Question page to ask it.

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10 thoughts on “Why do some women shake when they orgasm?”

  1. Norah says:

    “Husband’s better watch out” lol mine knows just to take a beating afterwards lol.? or he just usually holds me down and kisses me softly untill I gain control. Thanks Jay

  2. Anonymous says:

    I don’t get too crazy, but my legs do shake after an orgasm, or sometimes even without one, just from muscles that have been really tight and then go shaky afterwards. At first my husband was wondering what was wrong that I was trembling, but I told him it’s just muscle fatigue. It goes away in a few minutes.

  3. John Wilder says:

    I find that when women have a G spot orgasm ( female ejaculation) they tend to tremble and shake
    uncontrollably. I believe that it is because that it is a much more intense full body orgasm, at least that is what women have told me.

  4. libl says:

    When my hubby used to give me oral, he would go for it rather intensely and it would make my legs shake uncontrollably BEFORE climax. I attributed it to the intensity of the nerves being stimulated.

    After a really good round of woman on top, I have been known to be unable to walk!! Sometimes my muscles will be weak for quite some time after.

    A few times I have almost passed out during or after sex. My blood pressure always checks out normal and I am declared by both my physician and gynecologist to be in good health.

    The female orgasm can be a VERY powerful thing.

  5. El Fury says:

    Sexy Corte does this and it drives me INSANE. Strong responsiveness during sex is generally a huge turn-on for your spouse, even if it feels “over the top” or even cheesy at first.

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  8. Anonymous says:

    I shake DURING orgasm – whole body shiver to actually convulsive. I also ejaculate, and I’m wondering if this has any link (however I shake whether I ‘squirt’ or not). The after-spasms may be from tense muscles, but a woman’s vagina spasms to a. make the male cum so b. the cervix can dip down & up again in a pool of ejaculate (this is what the cervix is doing during spasm). As far as my whole body shakes – I’m really curious why…

  9. Craig Gjerdingen says:

    Most Disagree votes I’ve ever seen on a Uncovering Intimacy article. Wish some of the disagree-ers would chime in, in the comments.

    1. Jay Dee says:

      Oh, there’s more on the “Why Do Married Men Masturbate” post (https://uncoveringintimacy.com/why-do-married-men-masturbate/)

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