POTS (postural orthostatic tachycardia syndrome) affects roughly 0.2% of the general population, which translates to an estimated 500,000 to 1,000,000 people in the United States alone. That makes it far more common than many people realize, though it remains widely underdiagnosed. Since the COVID-19 pandemic, incidence rates have climbed sharply, bringing new attention to a condition that patients and doctors alike have historically overlooked.
Who Gets POTS
POTS overwhelmingly affects younger people, with most patients between 15 and 25 years old at diagnosis. Women make up more than 75% of cases, though the gender gap narrows somewhat in adolescents (about 63% female) and in older adults (about 54% female). Men can and do develop POTS, but the condition is often studied and described in the context of young women, which can contribute to delayed recognition in other groups.
The condition is diagnosed when your heart rate increases by at least 30 beats per minute within 10 minutes of standing, without a significant drop in blood pressure. For adolescents between 12 and 19, the threshold is higher: 40 beats per minute. That higher bar exists because teenagers naturally have more heart rate variability, so the diagnostic cutoff accounts for that.
The COVID-19 Effect on POTS Rates
The pandemic reshaped the landscape of POTS. A large analysis covering over 65 million patient records across 64 healthcare organizations found that the incidence rate of POTS jumped from 1.42 per million person-years before March 2020 to 20.3 per million person-years afterward. That’s roughly a 14-fold increase. Monthly new cases rose from about 4 to nearly 23 per month across the study network.
This surge aligns with what clinicians observed in long COVID patients, many of whom developed the hallmark symptoms of POTS: racing heart on standing, dizziness, fatigue, and exercise intolerance. POTS has long been recognized as a post-viral condition, sometimes triggered by mononucleosis or influenza. COVID-19 appears to be an especially potent trigger, and the sheer number of infections worldwide has expanded the POTS population significantly.
Conditions That Overlap With POTS
POTS rarely travels alone. In a large survey of nearly 4,900 POTS patients, 25% also had a diagnosis of Ehlers-Danlos syndrome (a connective tissue disorder that causes joint hypermobility and fragile skin) and 9% had mast cell activation syndrome (a condition where immune cells overreact, causing flushing, hives, and gastrointestinal problems). These three conditions cluster together frequently enough that clinicians familiar with POTS routinely screen for the other two.
The overlap matters because treating only the heart rate symptoms of POTS without addressing underlying connective tissue issues or immune dysfunction often leaves patients feeling only partially better. If you’ve been diagnosed with POTS and still have unexplained joint pain, skin changes, or allergic-type reactions, these associated conditions are worth investigating.
Why It Takes So Long to Get Diagnosed
Despite affecting up to a million Americans, POTS is frequently missed. The average patient waits 6 years and sees 7 different healthcare providers before receiving a correct diagnosis. Some wait decades. The symptoms, including fatigue, brain fog, lightheadedness, and rapid heartbeat, overlap with anxiety, deconditioning, and other common conditions. Many patients report being told their symptoms are psychological before finally getting a tilt table test or active stand test that reveals the characteristic heart rate spike.
Part of the problem is medical education. POTS receives minimal coverage in most training programs, so primary care providers may not think to check for it. The diagnostic test itself is straightforward: measuring heart rate and blood pressure while lying down and then standing. But if a provider isn’t looking for POTS, they won’t order the test.
The Real-World Impact
POTS is not just an inconvenience. In a study of over 5,400 patients, 74% reported being unable to work for more than a week at some point due to their symptoms. Only 48% of the study population was employed in the three months before the survey. A separate UK study found that 29% of POTS patients were unable to work at all because of their condition.
These numbers reflect the severity that many people outside the POTS community don’t appreciate. Standing upright, the most basic requirement of most jobs, is the exact thing that triggers symptoms. Patients often describe good days and bad days, but the unpredictability itself makes holding a traditional job difficult. For adolescents, POTS can mean missing months of school, falling behind academically, and losing social connections during critical developmental years.
Is POTS Becoming More Common, or Better Recognized?
Both. The post-COVID surge in cases represents a genuine increase in people developing the condition. But awareness has also grown substantially. Social media, patient advocacy organizations, and long COVID research have all pushed POTS into broader medical and public consciousness. More patients now arrive at appointments already suspecting POTS, and more clinicians know what to look for.
The pre-pandemic estimate of 0.2% of the population likely undercounted cases, given the 6-year average diagnostic delay. As awareness improves and more post-COVID cases are identified, the true prevalence may turn out to be higher than previously understood. For now, POTS sits in an unusual space: common enough to affect hundreds of thousands of people, yet still unfamiliar to many of the doctors they visit first.