Can COVID cause POTS?

New onset of postural tachycardia following infection is well described, and it is one of the more concrete things reported in the post-viral literature. Whether the infection caused it or revealed something already present is not resolvable in an individual case.

How is POTS actually confirmed?

By a sustained heart rate rise on standing, measured during a structured test, without the blood pressure drop that would indicate a different problem. It is one of the few conditions in this space with a concrete measurable definition.

Why do I have gut symptoms with this?

Autonomic function influences gut motility, so altered autonomic regulation can produce slowed transit, bloating and altered bowel habit. That is also why this cluster overlaps heavily with the bacterial overgrowth picture.

Does having one rule out the other?

No. Long COVID is a description of symptoms persisting after infection, which can include postural tachycardia. They are not competing labels so much as one sitting inside the other for many people.

What should I get done first?

The standing test, because it is inexpensive, widely available, and produces an actual number. In an area where most questions have no clean answer, start with the one that does.

Is it long COVID or POTS?

By B. Gray Randolph · Updated August 4, 2026

Of the 36 pairs we measured, this one has the clearest practical answer, and it is not the one most pages give.

What actually separates them

Long COVID describes symptoms persisting after a documented infection. Postural orthostatic tachycardia syndrome describes a specific measurable event: a sustained heart rate rise on standing without a blood pressure drop. One is a broad time-anchored description, the other a narrow measurement. For many people they are not competing labels at all, because the second sits inside the first.

That framing matters. Asking which one you have implies they are alternatives. A person can meet the standing-test definition and also have persistent post-infection symptoms, and a great many do.

How often patients discuss both

7,177comments mention both long COVID and dysautonomia

out of 7,205,554 comments across 18 patient subreddits, 2011-02-24 to 2026-05-26

query: ("long covid" OR "longcovid" OR "long haulers" OR "longhauler") AND ("dysautonomia" OR "postural orthostatic" OR "postural tachycardia")

How this was measured, and its limits · reddit.db@a313e531

That is 9.1% of every dysautonomia comment in our corpus, second only to the mast cell overlap. Both of these communities grew rapidly after 2020, and the conversation between them is one of the newest in this dataset.

Why one of these is worth testing first

A structured standing test is inexpensive, widely available, and produces a number that can be compared against a threshold. Almost nothing else discussed on this site can say that. If part of your picture might be postural tachycardia, that is the cheapest real answer available to you, and it does not depend on resolving anything contested.

Why the gut is involved

Autonomic function influences gut motility. Slowed transit produces bloating and altered bowel habit, which is the same picture bacterial overgrowth produces, which is why all three appear together in our corpus. The guideline is direct about the limits of reasoning from that picture.

Pimentel M et al., American Journal of Gastroenterology 2020 Clinical guideline

No single symptom can be specifically attributed to overgrowth. When autonomic dysfunction, post-viral illness and overgrowth all generate the same complaints, symptom pattern carries no diagnostic weight on its own.

What to do next

Get the standing test. Then take the result, with your infection history, to a clinician. A measured number plus a timeline is a substantially better starting point than a symptom list that fits four conditions.

Common questions

Can COVID cause POTS?: New onset of postural tachycardia following infection is well described, and it is one of the more concrete things reported in the post-viral literature. Whether the infection caused it or revealed something already present is not resolvable in an individual case.
How is POTS actually confirmed?: By a sustained heart rate rise on standing, measured during a structured test, without the blood pressure drop that would indicate a different problem. It is one of the few conditions in this space with a concrete measurable definition.
Why do I have gut symptoms with this?: Autonomic function influences gut motility, so altered autonomic regulation can produce slowed transit, bloating and altered bowel habit. That is also why this cluster overlaps heavily with the bacterial overgrowth picture.
Does having one rule out the other?: No. Long COVID is a description of symptoms persisting after infection, which can include postural tachycardia. They are not competing labels so much as one sitting inside the other for many people.
What should I get done first?: The standing test, because it is inexpensive, widely available, and produces an actual number. In an area where most questions have no clean answer, start with the one that does.