POTS mostly affects women of childbearing age, and about half of people first notice symptoms as teenagers, so hormones are part of the story from the start.1PubMed Central. The face of postural tachycardia syndrome – insights from a large cross‐sectional online community‐based survey Many people find their racing heart and dizziness rise and fall with their cycle, pregnancy, or midlife changes. Hormones matter in a second, less obvious way too: the chemical signals that tell the body how much fluid to keep often don’t work properly in POTS. Some of the most useful treatments work by nudging those hormone systems rather than the heart itself.
Why POTS Often Flares Around Your Period
Up to about 7 in 10 women with POTS say their symptoms change across their menstrual cycle.2PubMed Central. The Long-Term Postural Orthostatic Tachycardia Syndrome Outcomes Survey-Gynecologic Findings: A Cross-Sectional Survey in Young Women Symptoms tend to be worst in the days before or during a period and milder in the weeks after it ends.3PubMed Central. The Long-Term Postural Orthostatic Tachycardia Syndrome Outcomes Survey-Gynecologic Findings: A Cross-Sectional Survey in Young Women Lightheadedness, near-fainting and fatigue are the ones that most often get worse during a period.4Heart, Lung and Circulation. Menstruation and Hormonal Contraception in Women with Postural Orthostatic Tachycardia Syndrome The pattern can persist even when POTS is otherwise well treated.5Johns Hopkins Children’s Center. General Information Brochure on Orthostatic Intolerance and Its Treatment
Estrogen and progesterone both act on blood vessels and fluid. Estrogen relaxes blood vessel walls, partly by boosting nitric oxide, a natural vessel-widening chemical.6PubMed Central. Pubertal Hormonal Changes and the Autonomic Nervous System: Potential Role in Pediatric Orthostatic Intolerance Wider vessels let more blood pool in the legs when you stand, and the heart answers by speeding up. Estrogen-driven nitric oxide can also dull the hormone signals that normally tighten vessels and save salt.7PubMed Central. Menstrual Cycle Affects Renal-Adrenal and Hemodynamic Responses during Prolonged Standing in the Postural Orthostatic Tachycardia Syndrome Higher progesterone, meanwhile, can quiet the body’s adrenaline response and lower resting blood pressure.8PubMed Central. Pubertal Hormonal Changes and the Autonomic Nervous System: Potential Role in Pediatric Orthostatic Intolerance9PubMed. Effects of progesterone on blood pressure, plasma volume, and responses to hypotension So the swings across the month can shift how well your circulation copes with standing.
A phone app makes this easy to see. Log heart rate, dizziness and fatigue daily, with your cycle day beside them. Two or three months of notes can show whether your flares seem to follow a pattern, which helps your doctor decide whether a hormonal approach is worth trying.
Not everyone’s worst days fall just before a period. Some people notice a dip around ovulation, so the pattern in your own log matters more than the typical one. Poor sleep, a missed meal, a hot day or an infection can add to hormonal effects, so one bad cycle day doesn’t prove a hormonal cause. A flare that lands at the same cycle point several months running is the useful clue.
On flare days, raising fluids and salt in the days before a period (if your doctor allows it) targets the low-volume problem. Compression garments and slow position changes help when blood pools more easily. Heavy bleeding can add to low blood volume, so mention it to your doctor. Rest is reasonable, but total inactivity tends to worsen POTS over time.
The Fluid Hormones That Often Fall Short in POTS
People with POTS often have noticeably less blood in circulation, about 700 mL less than expected on average in one comparison.10PubMed. Renin-aldosterone paradox and perturbed blood volume regulation underlying postural tachycardia syndrome Normally, a drop in volume triggers a chain of signals that ends with aldosterone, a hormone that makes the kidneys hold on to salt and water.11PubMed Central. Abnormalities of Angiotensin Regulation in Postural Tachycardia Syndrome In POTS, renin, the starting signal, often fails to rise, and aldosterone is paradoxically low.12PubMed. Renin-aldosterone paradox and perturbed blood volume regulation underlying postural tachycardia syndrome A middle step in the chain can even be raised while the salt-holding hormone stays low.13PubMed Central. Abnormalities of Angiotensin Regulation in Postural Tachycardia Syndrome
When the salt-holding signal is weak, the kidneys let salt and water go, and the fluid you drink can pass through faster than expected. That helps explain why people with POTS often feel worse after long stretches without drinking or salty food, in hot weather, or after illness with vomiting or diarrhea. It also explains why a large drink of water can give a short-term lift while standing.
Low volume is common but not universal: in a large clinic group, at least 29% of POTS patients showed signs of low blood volume from low salt in their urine.14PubMed. Postural orthostatic tachycardia syndrome: the Mayo clinic experience
The weak salt-saving signal is also why doctors often recommend extra salt and two to three liters of fluid, and why generic advice to cut salt doesn’t fit most people with POTS. Anyone with high blood pressure or kidney issues needs individual guidance first. A 24-hour urine test can show whether you are taking in enough salt.
Renin and aldosterone blood tests check this chain. Results can vary with posture, time of day and medications, and normal-looking numbers can still be too low for someone with low volume.
Birth Control Pills That Can Help or Hurt
Some women with POTS take birth control pills continuously or on an extended schedule, having a period about every 3 months.15Johns Hopkins Children’s Center. General Information Brochure on Orthostatic Intolerance and Its Treatment Fewer periods means fewer of the hormone drops that bring on flare days. This approach is used alongside POTS medicines, not instead of them, and should be planned with your doctor.16Johns Hopkins Children’s Center. General Information Brochure on Orthostatic Intolerance and Its Treatment
A pill won’t cut flares for everyone. Some people notice little change and a few feel worse on certain pills, so it is a trial and not a promise. The estrogen in a pill is a different dose and type from the estrogen your body makes, so its effect on vessels and fluid may not match what happens naturally. If a pill doesn’t help after a fair trial, switching the type or stopping under your doctor’s guidance is a reasonable next step.
One ingredient deserves attention. Pills such as Yaz and Yasmin contain drospirenone, a progestin that works like the water pill spironolactone.17PubMed Central. Postural Tachycardia Syndrome (POTS) Spironolactone-like drugs block aldosterone and push out salt and water. For people already low on aldosterone and blood volume, POTS specialists recommend switching to a pill with a different progestin.18PubMed Central. Postural Tachycardia Syndrome (POTS)
When you raise contraception with your doctor, bring your symptom log showing when flares happen, and check the progestin named on your pill packet or prescription. Ask whether an extended or continuous schedule suits you. Estrogen-containing pills carry clot risks, so personal and family history matters. Changes to POTS symptoms may take two or three cycles to judge.
Breakthrough bleeding is common early on with continuous use and often settles. Stopping a pill suddenly can trigger a withdrawal bleed and a possible flare. Non-pill options like hormonal IUDs act differently and deserve their own discussion.
POTS During Pregnancy and After Birth
About 6 in 10 women with POTS feel worse than usual in the first trimester.19PubMed Central. Symptoms of postural orthostatic tachycardia syndrome in pregnancy: a cross-sectional, community-based survey Just under half feel worse in the second, the most stable stretch for many, and close to 6 in 10 feel worse again in the third.20PubMed Central. Symptoms of postural orthostatic tachycardia syndrome in pregnancy: a cross-sectional, community-based survey Still, about 1 in 5 to 1 in 3 women actually improve in each trimester.21PubMed Central. Symptoms of postural orthostatic tachycardia syndrome in pregnancy: a cross-sectional, community-based survey Women who improve early usually keep improving, and those who worsen early usually stay worse.22PubMed Central. Symptoms of postural orthostatic tachycardia syndrome in pregnancy: a cross-sectional, community-based survey
Pregnancy pulls in opposite directions. It greatly increases the amount of blood in circulation, which can ease symptoms in people whose POTS is driven by low volume. At the same time, nausea and vomiting early on, higher heart rate demands, and the weight of the baby later can push symptoms the other way. Rising hormones also widen blood vessels, so the effects on circulation are mixed. That’s why trimester patterns are only averages.
After birth, estrogen and progesterone fall sharply and pregnancy fluid retention fades.23PubMed Central. Postpartum Postural Orthostatic Tachycardia Syndrome in a Patient with the Joint Hypermobility Syndrome Symptoms can appear or flare in the weeks after delivery; one reported case involved a woman with very flexible joints.24PubMed Central. Postpartum Postural Orthostatic Tachycardia Syndrome in a Patient with the Joint Hypermobility Syndrome
Planning helps. See your POTS doctor and obstetrician before conceiving to review which medicines are safe. Morning sickness can sharply cut fluid and salt intake, so have a plan for that. In later pregnancy, lying on your left side and avoiding long periods of standing help. Most women with POTS have normal deliveries, but they should share their diagnosis with the birth team.
After delivery, blood loss at birth and the fluid demands of breastfeeding can lower volume. Night feeds and broken sleep can worsen dizziness and fatigue. Restart salt and fluid habits early, and ask before resuming medications. Report fainting or a racing heart that doesn’t settle.
Stress Hormones and the Adrenaline-Driven Type
About 29% of POTS patients have the adrenaline-driven type, called hyperadrenergic POTS, defined by a standing norepinephrine level of 600 pg/mL or more.25PubMed. Postural orthostatic tachycardia syndrome: the Mayo clinic experience Norepinephrine is an adrenaline-like hormone that speeds the heart and tightens vessels. In the adrenaline-driven type, these high levels don’t track with low salt, so it isn’t simply a side effect of low volume.26PubMed. Postural orthostatic tachycardia syndrome: the Mayo clinic experience In some people the surge seems to start in the brain, and medicines that calm brain signals to the nerves can help.27PubMed Central. Hyperadrenergic Postural Tachycardia Syndrome. Clinical Biomarkers and Response to Guanfacine
Clues include a pounding heart, tremor, anxiety-like feelings and flushing on standing. A standing blood norepinephrine test helps confirm it, and this type often responds to different medicines than the low-volume type.
Cortisol, the main stress hormone, has measured higher in people with POTS than in healthy people, including children.28PubMed Central. Comparison of cortisol levels in patients with vasovagal syncope and postural tachycardia syndrome29PubMed. Salivary Cortisol Levels Predict Therapeutic Response to a Sleep-Promoting Method in Children with Postural Tachycardia Syndrome The adrenal glands respond normally when tested, so POTS isn’t an adrenal disease.30PubMed Central. Adrenal Gland Response to Adrenocorticotropic Hormone is Intact in Patients with Postural Orthostatic Tachycardia Syndrome Ask before trying supplements marketed for adrenal fatigue.
Hormone-Based Treatments and What the Evidence Shows
Desmopressin, a lab-made version of the body’s water-holding hormone, lowered standing heart rate by about 7 beats per minute within hours.31PubMed Central. Desmopressin acutely decreases tachycardia and improves symptoms in the Postural Tachycardia Syndrome (POTS) Symptoms eased compared with a dummy pill, without raising blood pressure.32PubMed Central. Desmopressin acutely decreases tachycardia and improves symptoms in the Postural Tachycardia Syndrome (POTS) Some doctors use it for short-term help on demanding days rather than every day.
Because it makes the body hold water, it can drop blood sodium to dangerous levels. Doctors usually limit fluids for a while after a dose and check sodium. Headache, nausea or confusion after a dose need urgent attention. It is a prescription option, not something to obtain on your own.
In a few transgender teens taking testosterone, POTS symptoms improved and they needed fewer POTS medicines.33PubMed Central. Clinical Course of Transgender Adolescents with Complicated Postural Orthostatic Tachycardia Syndrome Undergoing Hormonal Therapy in Gender Transition: A Case Series Two women taking testosterone for gynecologic reasons reported better POTS and joint symptoms.34PubMed. Exogenous testosterone use in cisgender heterosexual females with postural orthostatic tachycardia syndrome: A dual case report These are single cases, so testosterone isn’t an established POTS treatment.
Testosterone has side effects such as acne, voice changes and hair growth. Discuss any hormone change with both your POTS doctor and your gynecologist.
Puberty, Menopause and Changing Symptoms Over Life
The most common age for POTS to start is 14.35PubMed Central. The face of postural tachycardia syndrome – insights from a large cross‐sectional online community‐based survey Puberty hormones, including estrogen, thyroid and growth hormones, widen vessels and can lower blood volume.36PubMed Central. Pubertal Hormonal Changes and the Autonomic Nervous System: Potential Role in Pediatric Orthostatic Intolerance Rising leptin, insulin and thyroid hormones may also push the adrenaline response higher.37PubMed Central. Pubertal Hormonal Changes and the Autonomic Nervous System: Potential Role in Pediatric Orthostatic Intolerance
For a teen with new POTS, symptoms around puberty are common and not imagined. School plans can allow water bottles, salty snacks and seated breaks. Many teens improve as they get older, though not all, and period tracking can start early to spot hormone patterns.
How POTS behaves through menopause hasn’t been formally studied.38PubMed Central. Postural Orthostatic Tachycardia Syndrome, Menopause and Hormone Replacement Therapy: Clinical Decisions in Times of Uncertainty Doctors see three patterns: symptoms worsen in the mid-to-late 40s, improve from the mid-40s to mid-50s, or appear for the first time.39PubMed Central. Postural Orthostatic Tachycardia Syndrome, Menopause and Hormone Replacement Therapy: Clinical Decisions in Times of Uncertainty No one can predict your own course, and decisions about hormone therapy are made case by case.40PubMed Central. Postural Orthostatic Tachycardia Syndrome, Menopause and Hormone Replacement Therapy: Clinical Decisions in Times of Uncertainty
Hot flashes, palpitations and poor sleep overlap with POTS symptoms, so tracking timing and triggers helps sort out which is which. Heavy irregular bleeding in perimenopause can lower blood volume. Ask about thyroid checks, since thyroid changes can mimic both.
Why Flexible Joints and Hormones Can Interact
Estrogen, progesterone, relaxin and testosterone all influence how loose ligaments are.41Medical Science. More Than Hypermobility: Understanding Ehlers-Danlos Syndrome in Women – A Literature Review Ligaments are loosest around ovulation, when estrogen outweighs progesterone.42PubMed Central. Hypermobile Ehlers-Danlos syndromes: Complex phenotypes, challenging diagnoses, and poorly understood causes How this plays out in hypermobile Ehlers-Danlos syndrome is barely studied.43Medical Science. More Than Hypermobility: Understanding Ehlers-Danlos Syndrome in Women – A Literature Review
In daily life, looser ligaments can make joints feel unstable or painful at certain points in the cycle, which may add to the tiredness and activity limits POTS already causes. Joint pain and POTS flares may cluster at different cycle points, so note joint pain next to your usual log. That gives your doctor something concrete to work from.
Hormonal birth control changes ligament-loosening hormones too, but whether it helps or hurts joints in hypermobile people is not well established. Stretchy connective tissue in vessels may add to blood pooling. Strength exercise done lying or seated protects joints and builds circulation, and the postpartum period is a vulnerable time for both joints and POTS.