Can EBV Cause POTS? What the Research Shows About Viruses and Dysautonomia
POTS can begin after an infection, and EBV is one of the viruses named. What the EBV-specific research includes, and why it can't show cause.
Photo: BEN ELLIOTT / Unsplash
POTS can begin after an infection, and Epstein-Barr virus (EBV), the virus behind most cases of mono, is one of the infections researchers name. That said, nobody has shown that EBV causes POTS. The EBV-specific research is mostly individual case reports, plus reviews that list EBV alongside other viruses. POTS, or postural orthostatic tachycardia syndrome, is a type of dysautonomia, which means the autonomic nervous system (the part that controls heart rate and blood pressure without any conscious effort) isn't regulating the way it should. Clinicians diagnose POTS when ongoing symptoms on standing come with a heart rate rise of at least 30 beats a minute within 10 minutes of standing or on a tilt table (at least 40 in teenagers aged 12 to 19), without a drop in blood pressure.
How many people with POTS say it started after an infection?
In a 2026 review in JAMA, Chung and Raj report that in 30% to 40% of cases (somewhere between about one in three and two in five), POTS symptoms began within 3 months after an infection, and they give SARS-CoV-2 (the virus that causes COVID-19), Epstein-Barr virus, and influenza as examples. They give no separate figure for EBV in their abstract.
Shaw and colleagues ran what was, in 2019, the largest reported patient survey, of 4,835 people who said a physician had diagnosed them with POTS. Of those, 1,933 (41%) said their symptoms started within 3 months of a specific event, and infection was the event people named most: 788 of them, or 41% of that group. That is about 16% of everyone surveyed, roughly one in six. Surgery (12%) and pregnancy (9%) came next. In their limitations, the authors noted that participants reported their own answers and the team didn't verify them independently, and the authors report no breakdown by virus.
A smaller clinic group came closer to Chung and Raj's figure. Kimpinski and colleagues followed 58 patients with POTS for a year, and 20 of them (34%) reported a viral infection before their symptoms began.
What the research on EBV and POTS includes
EBV is very common. In US national survey data from 2009 to 2010, Balfour and colleagues found EBV antibodies in 89% of 18- and 19-year-olds, nearly nine in ten. That makes it hard to say whether an old infection had anything to do with symptoms that came years later, and in my view it may be part of why most of the published work connecting EBV and POTS is made up of case reports.
In 2020, Yaxley described a 17-year-old in Australia whose antibody tests showed mono and who also developed an abscess beside her tonsil. Over the next three months she had ongoing tiredness, nausea, headaches, and near-fainting that eased when she lay down. Her heart rate went from 76 beats a minute lying down to 134 after five minutes of standing, and a tilt-table test confirmed POTS. Her thyroid, cortisol, and urine tests for adrenal hormones were normal. By 11 months after she left the hospital, her orthostatic symptoms (the ones brought on by being upright) had resolved.
In the discussion, Yaxley wrote that a specific infectious trigger for POTS hasn't been identified, and that a wide variety of infections, along with vaccination, surgery, and trauma, have been implicated. Yaxley also noted that it is difficult to tell whether her POTS would have resolved on its own. One case shows the sequence can happen. It can't tell you how common that is, or whether EBV was the cause.
Katz and colleagues ran the closest thing to a larger EBV study, and they tested standing tolerance rather than POTS itself. They followed adolescents after mono, and six months later they tested 36 who met criteria for chronic fatigue syndrome and 43 who had recovered. The researchers found abnormal results in 9 of 36 (25%, about one in four) who met criteria for chronic fatigue syndrome and in 9 of 43 (21%) who had recovered, and that difference wasn't statistically significant. The authors don't report in their abstract how many of the teenagers met POTS criteria.
There isn't enough direct evidence to say whether POTS is more common after mono, since none of these papers compared POTS rates in people who had mono with people who didn't.
Why "after" isn't the same as "because of"
Timing on its own is a weak kind of link. Chung and Raj report a peak in new POTS cases between ages 13 and 29, and mono is common in teenagers and young adults as well, so you would expect some overlap between the two by chance.
In my practice, POTS usually turns out to be connected to something else, so the more useful question is what is behind it. The possibilities I look at include adrenal issues, a mast cell picture, hypermobility (unusually flexible joints), and an autoimmune condition. A chronic infection can be part of that picture too. In my experience, its effects usually reach beyond the infection itself, to adrenal function, autonomic regulation, and the gut at the same time.
What to check if your POTS began after mono or another infection
Chung and Raj write that the first evaluation should exclude other conditions that cause a fast heart rate, including thyroid disease, adrenal insufficiency, anemia, dehydration, and medication effects.
If you haven't had a 10-minute stand test or a tilt-table test, bring it up at your next appointment, since clinicians use that heart rate change to diagnose POTS. Our post on POTS and ME/CFS covers what each test can show, and why stomach symptoms can get worse when you stand covers what standing does to digestion.
EBV testing makes more sense when your history fits, such as POTS that began after mono, or fatigue that sleep doesn't relieve. Since most people have been exposed by adulthood, I start with symptoms and rule out the common causes of fatigue, such as anemia, low iron, low vitamin D, or thyroid issues, before I look at four EBV antibodies. How to read EBV test results explains what each marker measures, and the rule-outs and the fourth antibody covers the order I work through them in.
There is some encouraging data on the course of POTS. In the Kimpinski study, 37% of patients, a little over a third, no longer met the tilt criteria for POTS at one year and orthostatic symptoms improved in most of them, although the group's average heart rate rise on tilt (33.8 beats a minute at one year, compared with 37.8 at the start) wasn't significantly different. Our post on post-viral illness beyond COVID covers other viruses, and you can find more posts like these on the chronic fatigue hub.
If chronic fatigue or EBV reactivation is part of your picture, the EBV Reactivation Treatment Algorithm is a step-by-step flowchart for working through it.
FAQ
Can mono trigger POTS?
There is a published case report of POTS developing after infectious mononucleosis, in a 17-year-old in Australia whose tilt-table test confirmed POTS. A case report shows that the sequence can happen. It can't show that EBV caused it, or how common it is.
Is POTS that starts after a virus permanent?
Not necessarily. In a Mayo Clinic Proceedings study that followed 58 people with POTS (from any cause, not only after a virus) for a year, 37% no longer met the tilt criteria at follow-up and orthostatic symptoms improved in most of them, although the group's average heart rate rise on tilt wasn't significantly different. The 17-year-old in the mono case report no longer had orthostatic symptoms by 11 months after leaving hospital.
Should I get EBV antibodies tested if I have POTS?
It can make sense when your history fits, for example when POTS began after mono or with fatigue that sleep doesn't relieve. Because most people carry EBV antibodies by adulthood, a positive result on its own doesn't explain POTS, so it makes sense to rule out the common causes of fatigue and of a fast heart rate first.
Which infections have been linked to POTS?
In a 2026 JAMA review, Chung and Raj report that in 30% to 40% of cases, POTS symptoms began within 3 months after an infection, and they name SARS-CoV-2, Epstein-Barr virus, and influenza as examples. In a survey of 4,835 people with POTS, infection was the most common event people named before their symptoms started.
Will treating EBV make POTS go away?
The studies discussed here didn't test that. In my practice, POTS usually turns out to be connected to something else, and an infection can be one possible trigger among several, so it's best to make treatment decisions with a clinician who knows your full history.
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