Hypermobile Ehlers-Danlos syndrome (hEDS) is diagnosed clinically using the Beighton score and the 2017 international criteria. There is no genetic test for the hypermobile type, so a primary care physician who knows the criteria can make the diagnosis without a genetics referral. Management centers on hypermobility-aware physical therapy, pacing, injury prevention, and treatment of the conditions that travel with it, most often POTS and MCAS. Fishtown Medicine evaluates and manages hypermobility and hEDS in Philadelphia and coordinates with genetics, cardiology, and physical therapy when needed.
If your joints bend farther than most people's, and you also deal with a racing heart when you stand, hives or flushing that arrive without warning, and a gut that seems to have its own agenda, you have probably been sent to 4 different specialists for what is often one picture. Joint hypermobility, POTS, and mast cell activation cluster together so consistently that the patient community has a name for it: the trifecta.
TL;DR: Hypermobile Ehlers-Danlos syndrome (hEDS) is a clinical diagnosis made with the Beighton score and the 2017 international criteria. No genetic test exists for the hypermobile type, so the diagnosis belongs in a primary care office with time to apply the criteria carefully. Management rests on hypermobility-aware physical therapy, pacing, and treating the companions, most often POTS and MCAS. Fishtown Medicine does this work in Philadelphia, in one place, with time for the whole story.
This page covers the diagnosis, the companion conditions, the daily management that makes the biggest difference, and when specialists earn their place.
What is hypermobile Ehlers-Danlos syndrome (hEDS)?
Hypermobile Ehlers-Danlos syndrome is a heritable disorder of connective tissue, the collagen framework that holds joints, skin, blood vessels, and organs together. When that framework is looser than average, joints move past their normal range, and the effects reach well beyond joints.
Hypermobility itself sits on a spectrum:
- Asymptomatic hypermobility. Many bendy people have no symptoms at all. That is a trait, not a disease, and it needs no treatment.
- Hypermobility spectrum disorder (HSD). Hypermobility with symptoms (pain, instability, injuries) that does not meet the full hEDS criteria.
- Hypermobile EDS (hEDS). Generalized hypermobility plus systemic features, meeting the 2017 international criteria.
The 2017 international classification describes 13 types of Ehlers-Danlos syndrome. The hypermobile type is by far the most common, and it is the only major type with no identified gene. Beyond loose joints, hEDS often brings soft or mildly stretchy skin, easy bruising, hernias and pelvic floor problems, chronic pain, fatigue, and autonomic symptoms.
How is hEDS diagnosed, and do you need genetic testing?
hEDS is diagnosed at the bedside, with an exam and a checklist, in about the time most systems give a whole visit.
The starting point is the Beighton score, a 9-point exam of joint mobility: 1 point for each little finger that bends back past 90 degrees, each thumb that touches the forearm, each elbow and each knee that extends beyond 10 degrees, and 1 point for placing your palms flat on the floor with straight knees. A score of 5 or more in adults (6 or more in children, 4 or more after age 50) counts as generalized joint hypermobility.
The 2017 hEDS criteria then require 3 things together:
- Generalized joint hypermobility by Beighton score.
- Systemic features, drawn from a defined list: skin findings, hernias, prolapse, dental crowding, arm span, recurrent dislocations or subluxations, chronic joint pain, and a first-degree relative who meets the criteria.
- Exclusion of other causes, including the rarer EDS types and other connective tissue disorders.
What I want you to know: there is no blood test or genetics-lab result that confirms hypermobile-type EDS, because no gene has been found for it. A genetics referral cannot give you the diagnosis. It can only rule out the rarer types when red flags point that way. The practical meaning is good news: a physician who knows the criteria and takes the time to apply them can give you a firm answer in a primary care office, this month, rather than after a year on a referral list.
Why do POTS and MCAS travel with hypermobility?
POTS and mast cell activation are over-represented in hypermobile patients, enough that we screen every hypermobile patient for both.
- POTS (postural orthostatic tachycardia syndrome) shows up as a racing heart, lightheadedness, brain fog, and exhaustion on standing. Orthostatic intolerance is common in EDS cohorts, and the leading explanation is mechanical: lax connective tissue in vein walls lets blood pool in the legs and belly on standing, so the heart races to compensate. A 10-minute active stand test in the office catches it.
- MCAS (mast cell activation syndrome) shows up as flushing, hives, food and medication sensitivities, GI flares, and sometimes near-anaphylaxis. Mast cells live in connective tissue, and mast cell disorders are reported at increased rates in EDS. The mechanism is still being worked out; the clinical overlap is well described.
The pairing matters for treatment. Treating the POTS improves exercise tolerance, which makes the joint rehab possible. Treating the mast cell activation often calms the gut and the flares that keep knocking patients off their program. Each piece supports the others, which is why they belong in one plan. Patients with post-viral onset often have long COVID features in the same picture, and when exhaustion is the loudest symptom the chronic fatigue workup covers the overlapping territory.
What does day-to-day hEDS management look like?
The management that changes lives is unglamorous and consistent:
Fishtown Medicine
A 90-minute conversation with Dr. Ash. A written plan you can actually follow.
- Physical therapy that understands hypermobility. This is the single highest-yield intervention, and the type matters. Hypermobile joints need stability work: strengthening the deep muscles around each joint, retraining proprioception (your sense of where a joint is in space), and low-load progressive resistance. End-range stretching, the default in many generic sports-injury protocols, makes hypermobile joints worse. Part of our job is connecting you with therapists who know the difference.
- Pacing. Most hEDS patients live in a boom-bust cycle: a good day gets spent, and the next 3 are lost to payback. Planned, even activity protects more good days than heroic weekends do, and building that rhythm is a skill we work on together.
- Injury care that respects the pattern. Sprains, subluxations (partial dislocations), and overuse injuries recur in hEDS, and they rehab differently: longer proprioceptive retraining, selective bracing or taping, and a lower threshold to strengthen the joints that keep failing.
- Pain management focused on function. Topicals, judicious medication choices, sleep repair, and strength. Many hEDS patients have medication sensitivities, so we start low and titrate with a plan.
- The gut. Reflux, bloating, constipation, and IBS-like symptoms are common in hEDS and often improve when the mast cell and autonomic pieces are treated.
- The basics that amplify everything. Iron status, vitamin D, and sleep regularity all move the symptom floor, so we measure and correct them early.
When do specialists earn their place?
Most hEDS care is primary care work, and referrals do their best work when they are specific:
- Genetics when red flags suggest a rarer EDS type: very fragile or stretchy skin with wide, thin scars; a family history of aortic aneurysm, dissection, or organ rupture; severe unexplained bruising. Classical and vascular EDS have identified genes and need genetic confirmation because the stakes and surveillance differ.
- Cardiology for an echocardiogram when the exam, symptoms, or family history call for a look at the aortic root and valves.
- Orthopedics for structural instability that strengthening cannot hold.
- Autonomic neurology for refractory POTS needing formal tilt-table and autonomic testing.
- Allergy and immunology for refractory mast cell symptoms.
A referral that arrives with a worked-up chart, a Beighton score, a stand-test result, and a specific question gets a very different visit than "young woman, joint pain, multiple complaints."
What does hEDS care look like in Philly right now?
Philadelphia has excellent institutions and a specific gap. Penn's adult genetics program sees EDS, but it is referral-gated and the waits run months, and it is built to answer the genetic-confirmation question rather than to manage the condition year over year. Pediatric hypermobility care in this city is strong, and then it ends: patients who grew up in a pediatric program age out around 18-21 and leave with a diagnosis but no adult physician who knows the condition.
Meanwhile the day-to-day work of hEDS, the sprain this month, the POTS flare in the July heat, the antihistamine layering, the PT coordination, the pacing conversation, is primary care work that needs time no 15-minute visit has. That gap is the one we built this practice to fill.
How hypermobility care works at Fishtown Medicine
First visit is 90 minutes. We do the Beighton exam and the 2017 criteria checklist in the office, run an active stand test for the POTS question, take a histamine-focused review of systems for the MCAS question, and order the supporting labs: CBC, comprehensive metabolic panel, TSH and free T4, ferritin and iron studies, vitamin D, B12, and tryptase when mast cell features are present.
Management starts the same day: the PT referral to hypermobility-aware therapists, the POTS foundation (fluids, salt, compression, recumbent-first exercise), and an antihistamine trial when the picture calls for it. Follow-up at 4-6 weeks to review labs and refine the plan, then at 1-3 month intervals. We coordinate with genetics and cardiology when red flags warrant it, with the workup already done.
What it costs
Membership at Fishtown Medicine covers all visits and ongoing management; see pricing for current rates. Labs, medications, imaging, and physical therapy are billed separately through their respective providers.
Key Takeaways
- hEDS is a clinical diagnosis: Beighton score plus the 2017 international criteria. No genetics lab can confirm the hypermobile type, so no referral gate should stand between you and an answer.
- POTS and MCAS travel with hypermobility often enough that both belong in every hypermobility workup.
- The highest-yield treatment is physical therapy built for hypermobility: stability and proprioception, with end-range stretching avoided.
- Genetics referral is for red flags suggesting classical or vascular EDS, which have identified genes and different stakes.
- Fishtown Medicine diagnoses and manages hypermobility and hEDS in primary care in Philadelphia, coordinating with specialists when the picture calls for it.
Scientific References
- Malfait F, Francomano C, Byers P, et al. The 2017 International Classification of the Ehlers-Danlos Syndromes. Am J Med Genet C Semin Med Genet. 2017;175(1):8-26.
- Tinkle B, Castori M, Berglund B, et al. Hypermobile Ehlers-Danlos Syndrome (a.k.a. Ehlers-Danlos Syndrome Type III and Ehlers-Danlos Syndrome Hypermobility Type): Clinical Description and Natural History. Am J Med Genet C Semin Med Genet. 2017;175(1):48-69.
- Beighton P, Solomon L, Soskolne CL. Articular Mobility in an African Population. Ann Rheum Dis. 1973;32(5):413-418.
- Roma M, Marden CL, De Wandele I, Francomano CA, Rowe PC. Postural Tachycardia Syndrome and Other Forms of Orthostatic Intolerance in Ehlers-Danlos Syndrome. Auton Neurosci. 2018;215:89-96.
- Seneviratne SL, Maitland A, Afrin L. Mast Cell Disorders in Ehlers-Danlos Syndrome. Am J Med Genet C Semin Med Genet. 2017;175(1):226-236.
- Kucharik AH, Chang C. The Relationship Between Hypermobile Ehlers-Danlos Syndrome (hEDS), Postural Orthostatic Tachycardia Syndrome (POTS), and Mast Cell Activation Syndrome (MCAS). Clin Rev Allergy Immunol. 2020;58(3):273-297.
Related Services and Reading
- The Patient Who Connected Her Own Dots: POTS, MCAS, and Hypermobility - a patient case on this whole picture, evaluated in one visit
- POTS Treatment in Philadelphia
- MCAS Treatment in Philadelphia
- Long COVID Care in Philadelphia
- Chronic Fatigue Treatment in Philadelphia
- Direct Primary Care in Philadelphia
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