POTS in Women: Why It's More Common, Periods and Pregnancy

How Much More Common Is POTS in Women?

A 2026 review in JAMA puts it at approximately 90% of cases, with the peak onset between ages 13 and 29 (Chung, 2026). In the largest survey of people living with POTS, 94% of 4,835 participants were female, and about half developed symptoms in adolescence, most often at 14 (Shaw, 2019). Our team puts it at roughly 4 or 5 women for every man.

Men get POTS too. The numbers describe who gets diagnosed, and a man with the same symptoms needs the same workup.

Why Does POTS Affect Women More Than Men?

Our team's answer is that we don't know exactly why, and it's unlikely to be a single cause. 3 explanations come up most.

Hormones. Flares tend to cluster around cyclical hormone changes, so hormones are where people look first. The research is less tidy than the idea. When 10 women with POTS were tilted upright in 2 phases of their cycle, blood pressure and blood vessel resistance were higher in the mid-luteal phase than the early follicular phase, while heart rate and the output of the heart were similar, and sympathetic nerve activity didn't differ. The authors concluded that something other than sympathetic nerve activity is likely behind the changes women report across the cycle (Stickford, 2015).

Autoimmune conditions. Women are more prone to autoimmune disease in general, so it gets offered as an explanation. Our team treats that as a correlation that doesn't mean much by itself. What's known about antibodies in POTS is on is POTS an autoimmune disease.

Body size. On average women have a smaller heart, less circulating volume, less muscle mass and a smaller neck, and each of those has been blamed. Nobody has shown how much any of them contributes.

Our team's own way of thinking about it is complexity. A body that cycles hormones every month and can carry a pregnancy runs more regulation automatically, and more regulation leaves more places for something to go wrong. That's a concept, and nobody has shown it to be the mechanism. Any of these may play some part in why women are more susceptible.

For the person who has it, the population question matters less than the personal one. You want to know why it's you, at this point in your life, and what can be done about it. The mechanisms our team looks for are on POTS symptoms by body system and in the 3D tour of the testing.

Why Is POTS Worse During Your Period?

Many women notice it, and it has been measured. In a questionnaire study, 65 women with POTS reported more lightheadedness than 95 healthy women in every phase of the menstrual cycle. Both groups were most lightheaded during menses and least in the follicular phase that follows, and the women with POTS also reported more gynecologic disease (Peggs, 2012).

Our team starts with the simplest explanation, which is blood volume. A period is a loss of blood, and if the body doesn't correct for the volume quickly enough, the result is plain volume depletion on top of a system that already struggles when you stand. 3 things are worth checking:

• Hydration. Whether fluid and salt intake keeps up in the days around your period. Salt and water for POTS covers the amounts.
• Iron. Low iron makes the same blood loss cost more. In 24 adolescents with POTS, half had low iron stores against 14% of the general pediatric population, and a quarter of the teenage girls were iron deficient (Jarjour, 2013). Iron is a blood test your physician can order.
• Timing. Whether your worst days line up with the bleeding itself, which points at volume, or with another part of the cycle.

It's complex, and it's worth working through if your symptoms follow your cycle. When low blood volume is the main driver, hypovolemic POTS explains what that looks like, and heavy or painful periods are a reason to see a gynecologist as well.

Can You Get Pregnant With POTS, and Does Pregnancy Make It Worse?

A systematic review concluded that POTS shouldn't be a contraindication to pregnancy, that the course of symptoms is variable during pregnancy and afterward, and that the mode of delivery should be decided by obstetric complications. It also rated the evidence as poor, mostly small observational studies (Morgan, 2018).

The largest data set is a community survey in which 3,652 participants with POTS reported at least 1 pregnancy. 81.1% had worse symptoms at some point in pregnancy, with 62.6% worse in the first trimester, 58.9% in the third and 58.7% in the 3 months after delivery. The first trimester predicted the rest: women who worsened early mostly stayed worse, and women who improved early kept the improvement (Bourne, 2023).

A smaller study followed outcomes. Among 10 women who had POTS before pregnancy, there were 17 live births with no stillbirths or congenital abnormalities, POTS symptoms were improved or stable during pregnancy in 6 of the 10, and 6 months after delivery symptoms were improved in 3, stable in 2 and worse in 5. Severe vomiting in the first trimester was common, at 59% (Blitshteyn, 2012).

Our team hears this question from women who are working their way back to health, and it's a hard one to answer for every person. Some get their health back, have children and move on through life. Others, with a predisposition toward other problems, have a harder pregnancy. Our team's view is that once you're healthy after POTS, your chances are as good as they'd have been being healthy without it.

Involve your obstetrician before you conceive if you can. Which POTS medications to continue is a decision for the obstetrician and the physician who prescribes them, and the review found that continuing pre-conception medication may help symptoms with no significant risks reported (Morgan, 2018).

What Are the Symptoms of POTS in Women?

They're the symptoms of POTS. In the survey that was 94% female, the most common were lightheadedness in 99%, a fast heart rate in 97%, near-fainting in 94%, headache in 94% and trouble concentrating in 94%, and the median delay to diagnosis was 24 months (Shaw, 2019). What's different for women is the timing, with flares around periods and changes in pregnancy. The full list is on POTS symptoms by body system.

POTS in Women: FAQ