Endometriosis, Urinary Symptoms, and POTS: How They May Connect

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Full transcript of the original video, lightly edited for readability.

I wanna talk about a connection almost nobody explains properly. Endometriosis, urinary problems and POTS like symptoms. Because a lot of women with endometriosis are dealing with symptoms that sound completely unrelated. Pelvic pain, bladder urgency, peeing all the time, waking up at night to urinate, extreme thirst, dizziness when standing, racing heart, brain fog, fatigue, exercise intolerance, feeling like their body cannot hold on to fluid. And instead of connecting the dots, many women are told, that is anxiety, that is just your bladder.

That is unrelated, that has nothing to do with endometriosis. But what if it does? Not in every case, not in a simplistic way, but mechanistically, there may be a real connection. Endometriosis is not just a pelvic lesion disease. It is inflammatory, hormonal, immune driven, vascular, neurological. And in some women, it may also affect fluid regulation and autonomic stability. Let's start with urinary symptoms. There are two different problems. People often confuse urinary frequency and true polyuria. Urinary frequency means you feel like you have to pee often, but each time only a small amount comes out.

That can happen when the bladder is irritated. It can happen with bladder endometriosis. It can happen with interstitial cystitis. It can happen when pelvic floor muscles are tight. It can happen when nerves from the uterus, pelvis, bladder and bowel become cross sensitized. In other words, the bladder may be receiving danger signals even when it is not actually full. That is frequency. But true Polyuria is different. Polyuria means the body is producing too much urine. Large volumes clear urine, frequent nighttime urination, extreme thirst, a feeling like no matter how much you drink, the fluid just runs through you.

That points to a deeper fluid regulation problem, and that is where vasopressin comes in. Vasopressin, also called antidiuretic hormone, is one of the body's main water retention hormones. When your body needs to hold on to water, vasopressin tells the kidneys to reabsorb water instead of wasting it. It does this through a pathway involving the V2 receptor, cAMP, protein kinase A, and a water channel called aquaporin 2. Think of aquaporin 2 like a little water gate in the kidney. When vasopressin gives the signal, aquaporin 2 moves to the surface of kidney collecting duct cells and allows water to be pulled back into the bloodstream.

That concentrates the urine and protects blood volume. But here is where endometriosis may complicate the story. Endometriosis is heavily associated with inflammatory mediators, especially prostaglandins like PGE2. PGE2 is one reason period pain can be so severe. It contributes to cramping, inflammation, uterine contraction, pain sensitivity, and lesion survival signaling. But PGE2 does not only act in the pelvis. It can also affect the kidneys. And in the kidney, excess PGE2 can interfere with the vasopressin signal. Instead of letting vasopressin place aquaporin two water channels where they need to go, PGE2 can block that pathway.

So now the body may produce vasopressin, but the kidney does not respond properly. The signal is there, the response is broken. That is called vasopressin resistance. In plain English, the body says, hold on to water, but the kidney says, I cannot hear you. So water is lost. Urine volume rises, the person pees more, they wake up at night, they feel thirsty, they feel depleted. And over time, that can contribute to low blood volume. Now, let's connect this to POTS. POTS stands for postural orthostatic tachycardia syndrome.

It is a form of dysautonomia where the heart rate jumps abnormally when standing. A person may stand up and feel dizzy, shaky, weak, nauseous, breathless, panicky, or like they are going to faint. Their heart races, not because they are dramatic, but because the body is trying to maintain blood flow to the brain. One major subtype of POTS is hypovolemic POTS. That means low blood volume. If you do not have enough circulating volume, standing becomes a problem. Gravity pulls blood downward, less blood returns to the heart.

Stroke volume drops, the brain senses reduce circulation, and the nervous system responds by dumping adrenaline and norepinephrine. The heart races to compensate. That racing heart is not the root problem, it may be the compensation. The body is trying to keep you upright. So if endometriosis related inflammation is pushing prostaglandins higher, and prostaglandins are interfering with kidney water retention, that could Theoretically contribute to fluid wasting. And if a woman is losing fluid through the kidneys, while also dealing with heavy bleeding, low iron, inflammation, pain, poor sleep, and pelvic venous pooling, you can see how the system starts to collapse.

The body becomes volume depleted, the nervous system becomes hypervigilant, the heart races when standing, the brain gets foggy, the body feels like it is running on emergency mode. And this is why some women say, I drink water constantly, but I still feel dehydrated. I crave salt, I pee all night. My heart races when I stand. My fatigue feels vascular. My brain fog feels like low blood flow. Those statements should not be ignored. They may be describing physiology. There is another layer to pelvic venous disorders.

Endometriosis can coexist with pelvic congestion, venous compression may, thurner syndrome, nutcracker syndrome, and other vascular problems. If blood pools in the pelvis or legs, that blood is technically still in the body, but it is not effectively returning to the heart. That creates relative hypovolemia. So now you may have two problems at once. Absolute low volume from fluid wasting, and relative low volume from venous pooling. The result, even worse orthostatic intolerance, more tachycardia, more fatigue, more brain fog, more pelvic pressure, more leg heaviness, more symptoms that get worse upright.

This is why endometriosis should not be treated like a simple reproductive disease. It can affect the pelvis, the bladder, the kidneys, the blood vessels, the nervous system, The immune system and the autonomic system. Pots can come from multiple mechanisms. So this is not about self diagnosis. This is about asking better questions. If a woman with endometriosis is urinating constantly, the first question is, is this frequency or true polyuria? Small amounts often or large amounts all day and night? If it is small amounts, think bladder irritation, pelvic floor, I C, nerve cross talk.

If it is large volumes, think fluid regulation, vasopressin, kidney concentration, electrolytes, glucose and systemic causes. If she has dizziness, racing heart, salt cravings, brain fog and worse symptoms when standing, then orthostatic testing matters. Heart rate and blood pressure lying down, then standing. Labs may matter. Urine, osmolality, serum sodium, kidney function, ferritin and iron markers, inflammatory markers, electrolytes. And if pelvic pressure, varicose veins, flank pain, left sided symptoms or leg heaviness are present. Vascular evaluation may matter too. The bigger message is this endometriosis is not just cramps.

It is a system's disease. And in some women, the symptoms may reflect a tissue to kidney to heart pathway. Pelvic inflammation increases prostaglandins. Prostaglandins may interfere with vasopressin signalling. The kidneys may waste water and salt, blood volume may drop, pelvic veins may pool blood. The autonomic nervous system may compensate with tachycardia. And the woman is told it is anxiety. No, it may be physiology. The future of endometriosis care has to be more integrated. Gynecology, urology, pelvic floor therapy, cardiology, autonomic medicine, vascular medicine, pain medicine.

Because Women are not collections of separate symptoms. They are whole systems. And if we keep treating the bladder, the pelvis, the heart, the kidneys and the nervous system as unrelated, we will keep missing the pattern. Endometriosis does not stay politely inside one box. It can pull on the whole network. And for women living with urinary dysfunction, dizziness, nocturia, brain fog, the answer is not dismissal. The answer is investigation, mechanism, pattern recognition, and a care that finally explains all of the disease.