Is POTS Genetic or Does It Run in Families?

If you have POTS and someone else in your family faints, gets dizzy on standing, has bendy joints or an autoimmune condition, it is natural to wonder whether you inherited this, and whether your children will too. The short answer is that POTS is not genetic in the simple, single-gene sense, but it clearly runs in families. You do not inherit POTS the way you inherit eye colour. What you can inherit is a set of predispositions that make POTS more likely, and then a trigger such as a viral illness, puberty, surgery or pregnancy usually has to come along before it appears.

That distinction matters, because “is POTS genetic” and “does POTS run in families” are really two different questions with two different answers. Let’s take them apart.

Is POTS inherited like a single gene?

No. The largest expert review of POTS to date, the 2019 National Institutes of Health consensus statement, states plainly that there is no evidence for a single-gene (monogenetic) cause of POTS (Vernino et al., 2021). POTS does not follow the clean inheritance pattern of conditions caused by one faulty gene, where a predictable fraction of children are affected.

A 2025 study took the deepest genetic look so far, combining genome-wide genotyping with whole-exome sequencing across 100 families and more than 200 unrelated cases. It found no single gene responsible. Instead it described POTS as polygenic, shaped by the combined effect of many common and rare variants, each adding a small amount of risk (Qu et al., 2025). In other words, there is no “POTS gene” to test for, and there is no clinical genetic test that diagnoses POTS or predicts who will develop it.

How often does POTS run in families?

Even though POTS is not a single-gene disease, it does cluster in families more than chance would predict. The clearest picture comes from a study of family history in POTS patients, which looked at what conditions relatives were affected by (Boris et al., 2020).

Read the chart from the bottom up. Only about 14 percent of people with POTS have a relative who also has POTS, which means most do not. But relatives are far more likely to share the surrounding traits: roughly 31 percent have a relative with orthostatic intolerance, 20 percent a relative with joint hypermobility, and 45 percent a relative with an autoimmune disease (Boris et al., 2020). That is the fingerprint of an inherited tendency, not an inherited disease.

The one clear genetic cause (and why it is rare)

There is exactly one well-known example of a single gene causing a POTS-like syndrome. In 2000, researchers studied a family with orthostatic tachycardia and found a mutation in the gene for the norepinephrine transporter, called SLC6A2 or NET, that cut the transporter’s function by more than 98 percent (Shannon et al., 2000). The transporter normally clears noradrenaline from the space between nerves, so when it fails, too much adrenaline-like signalling lingers and the heart races on standing.

It is a landmark finding, but it is one family. For the overwhelming majority of people with POTS, no such mutation is present, and this is not the explanation.

There is an interesting twist that explains why. A later study found that many people with POTS do have lower levels of the norepinephrine transporter, yet the gene sequence itself was normal. The difference was not in the DNA letters but in how the gene was switched on and off, through chromatin changes that quietened it (Bayles et al., 2012). So even the one gene most tied to POTS is usually turned down by regulation rather than broken by a mutation you could inherit and test for.

What is actually passed down

If POTS itself is rarely inherited, what travels through families is a collection of predispositions. Think of them as loaded dice rather than a verdict.

Two of these deserve a closer look.

Joint hypermobility is genuinely heritable. Hypermobile Ehlers-Danlos syndrome (hEDS) and looser hypermobility frequently run in families and are inherited in an autosomal dominant pattern, meaning each child of an affected parent has roughly a 50 percent chance of inheriting the trait, even though the specific gene behind hEDS has not yet been identified (GeneReviews, hypermobile EDS). Because hypermobility and POTS travel together so often, an inherited tendency toward bendy joints is one of the clearest ways a POTS predisposition moves down a family. We cover this overlap in detail in hypermobility, hEDS and POTS.

Female sex is the loudest risk factor of all. POTS affects women far more than men, with a female-to-male ratio greater than four to one, and it most often begins in adolescence, around age 14 (Vernino et al., 2021). The reasons are not fully understood, but sex is a far stronger and more consistent signal than any individual gene found so far.

Why it usually takes a trigger

Here is the part that family history alone cannot explain: plenty of people carry these predispositions for years and never develop POTS. In most cases something has to set it off. The same consensus statement lists the common triggers: a viral illness (often respiratory or gastrointestinal), physical trauma such as a concussion, the hormonal shift of puberty or menarche, pregnancy, and surgery (Vernino et al., 2021). An antecedent viral infection is reported in roughly 20 to 50 percent of cases, which is why long COVID has pushed so many new POTS diagnoses, as we explore in what actually causes long COVID.

This gene-plus-trigger model is why a family history is a risk factor rather than a sentence. It also fits the real world, where someone can sail through decades, catch a virus in their thirties, and only then develop the racing heart and dizziness that lead to a diagnosis. If you are trying to sort your own picture out, how POTS is diagnosed and the POTS subtypes are good next reads.

Will my children get POTS?

This is the question underneath all the others, and the honest answer is reassuring: there is no way to predict it, and most children of a parent with POTS will not develop it. Your child may inherit a predisposition such as hypermobility, but that is not the same as inheriting POTS, and no genetic test can tell you either way.

What helps is awareness rather than worry. Because POTS often starts around puberty, the practical thing is to know the signs: lightheadedness or a racing heart on standing, fatigue out of proportion to activity, brain fog, and fainting. If those appear, a simple stand test at home or in clinic is the sensible first step, not a genetics panel. We walk through the home version in the orthostatic stand test at home, and POTS in younger people has its own patterns, covered in what POTS looks like in teenagers.

The bottom line

POTS is not genetic in the way people usually mean. It is not a single-gene disease, there is no genetic test for it, and most people with POTS have no affected relative. But it does run in families, because the traits that make POTS more likely, such as joint hypermobility, an autoimmune tendency and female sex, are themselves partly inherited, and a trigger like a virus, pregnancy, surgery or puberty often decides whether the tendency ever becomes POTS. A family history raises your odds and is worth mentioning to your clinician, but it does not determine how severe POTS will be, how you will recover, or whether your children will get it.

Sources

• Vernino S, et al. Postural orthostatic tachycardia syndrome (POTS): State of the science and clinical care from a 2019 National Institutes of Health Expert Consensus Meeting, Part 1. Autonomic Neuroscience: Basic and Clinical, 2021.
• Qu HQ, et al. The genetic landscape of pediatric postural orthostatic tachycardia syndrome. Clinical Autonomic Research, 2025.
• Boris JR, et al. Family history of associated disorders in patients with postural tachycardia syndrome. Cardiology in the Young, 2020.
• Shannon JR, et al. Orthostatic intolerance and tachycardia associated with norepinephrine-transporter deficiency. New England Journal of Medicine, 2000.
• Bayles R, et al. Epigenetic modification of the norepinephrine transporter gene in postural tachycardia syndrome. Arteriosclerosis, Thrombosis, and Vascular Biology, 2012.
• Levy HP. Hypermobile Ehlers-Danlos Syndrome. GeneReviews, University of Washington, Seattle.