THE ENDOLLS NOTEBOOK · ARCHIVE
Endometriosis Flares: Triggers, Differences, and Warning Signs
April 16, 2026
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Full transcript of the original video, lightly edited for readability.
An endometriosis flare up is not just my endo hurts today a flare up is a search and disease activity it is the moment where the inflammatory burden the neural irritation the organ specific dysfunction and the body's pain response all rise above baseline and start hitting harder than usual or. In other words when endo actually starts damage to the body that is what a flare really is it is not one thing it is not one symptom and it is not the same from woman to woman a flare is.
What happens when the lesion activity the surrounding inflammatory chemistry and the nervous system all start amplifying each other at the beginning many flare-ups are still largely cyclical. That means they tend to track with hormonal shifts and bleeding activity early on that often looks like classic dysmenorrhea cyclical lower abdominal pain and the sense that the pelvis becomes progressively more inflamed but a flare is not always purely cyclical that is one of the biggest mistakes people make because once the disease matures once lesions become more innovative and once the nervous system starts adapting flare-ups can become a cyclic too.
At that point a woman is no longer just flaring because of her cycle she is flaring because the nerves have Learned how to stay active that is where neurogenic inflammation starts to matter because now the nerves themselves are part of the problem now the pain system is participating in the flare and if that keeps happening the entire system becomes easier to trigger it becomes harder to calm down and much more likely to overreact that is how the body starts amplifying the flare itself and.
This is why phenotype matters so much endometriosis does not come in one clean uniform presentation. This is where we highlight the need for a spectrum in disease pathology the three dominant ones are superficial peritoneal disease ovarian endometriomas and deeply infiltrating endometriosis and yes the variation can apply to adenomyosis each one flares differently because each one lives in a different biological setting and stresses the body in a different way. So when I explain or approach any flare up I do not explain nor do we approach it as one generic event I explain it by phenotype phenotype changes the behavior let's start with superficial peritoneal endometriosis.
This is the phenotype most people unknowingly picture as classic pain when the phenotype flares the dominant pattern is usually inflammatory and cyclical. This is where you see classic pelvic aching this phenotype tends to flare more like a pelvic inflammatory event because its symptom language is often classically cyclical. Now compare that to ovarian endometriomas ovarian endometriomas are a different phenotype entirely these flares feel deeper they feel heavier more localized to one side or the deep pelvis more pressure like more dragging more full.
This is not just a flat irritated surface this is a deeper ovarian phenotype with much more buried weighted deep pelvic pain think a searing hot blade being pushed into your side and then you get to deeply infiltrating endometriosis and. This is where flare-ups become much more organ specific because deeply infiltrating disease does not just flare like period pain it flares according to what it invades. That is the key if the disease is infiltrating the bowel the flare becomes a bowel flare now you see dyskexia and intense pain now you see stool irregularities constipation paradoxical bowel behavior and commonly bloody stools it announces itself through the bowel if the disease is infiltrating the rectivaginal space then the flare becomes pressure specific and penetration specific now intercourse can become a trigger sitting and bowel pressure can all become part of the flare the lesion is embedded in a high pressure space if the disease is infiltrating the bladder the flare becomes urinary now you see pink urine from blood cyclical dysuria frequency and post void pain again.
This is why endometriosis flare-ups cannot be explained as one generic event the flare follows the phenotype and the organ and then you have adhesions layered in making it more complicated because some flares are not just chemical they are mechanical driven by restriction pulling and loss of normal organ glide. This is why some women flare with simple movement or stretching. Now here's where the deeper lesson comes in flare severity does not always match lesion size that is another common mistake a small but highly innovated highly inflammatory lesion in the wrong place can create brutal flare-ups while extensive disease may not flare-ups are determined by location phenotype inflammatory activity nerve involvement and pain system sensitization and if a woman has been flaring for years then central sensitization starts changing the entire equation the body has been taught pain the spinal cord becomes more reactive pain thresholds drop the field of pain expands the next flare does not need to be as large to feel larger that is.
What happens when repeated pain starts reshaping the way the nervous system processes pain itself it expands beyond the pelvis. So what is a flare up it is a repeating escalation where inflammatory signaling lesion irritation and nervous system amplification all rise together it is the epitome of tissue injury and repair something we have discussed repeatedly in our channel how that flare looks depends on phenotypes superficial disease flares like inflammatory pelvic pain endometriomas flare like deep pressure and aching foul disease flares like dysfunction and cramping bladder disease flares like urinary burning rectovaginal flares like pressure and dyspareunia.
The final truth is this there is no single endometriosis flare there are inflammatory organ base nerve amplified and phenotype specific flares and we are just scratching the surface because endometriosis is the great chameleon. That is why one woman looks like she has violent cramps another a bowel disorder another a bladder condition and another chronic pain all month this is my.
