FLORA’S KISS BLOG
A Deep Dive into Ehlers-Danlos Syndrome — Its Causes, Subtypes, Symptoms, Diagnosis, and the Lives Behind the Label
Flora’s Kiss Blog • June 2026
Many people in our community arrive at Ehlers-Danlos syndrome sideways. They came looking for answers about chronic pain, exhausting fatigue, a gut that never quite behaves, or a heart that races the moment they stand — and somewhere along the way, often after years of being told it was “all in their head,” a clinician finally said the words: Ehlers-Danlos.
For our readers especially, this matters. A growing body of research shows that hypermobility and EDS are strikingly common among autistic and ADHD people. A 2025 systematic review and meta-analysis found that around 28% of autistic people met criteria for a hypermobility spectrum disorder or EDS — rising to roughly 39% when assessed clinically. Other work has found that more than half of people diagnosed with autism, ADHD, or Tourette syndrome show elevated joint hypermobility, compared with about 20% of the general population, and that this same connective-tissue difference helps explain the dysautonomia, fatigue, and chronic pain so many neurodivergent people carry.13,14
In other words: if you are part of the neurodivergent community, EDS is not a distant curiosity. It may be part of your story, or the story of someone you love. This is a long, careful look at what it is — and how people live with it.
Ehlers-Danlos syndrome is not one condition but a family of inherited connective tissue disorders. Connective tissue — built largely from collagen, the body’s most abundant structural protein — is the scaffolding that holds us together. It gives strength and stretch to skin, ligaments, tendons, blood vessels, the gut wall, and the membranes around our organs. In EDS, a genetic difference changes how collagen or its supporting proteins are made or processed, so that scaffolding behaves differently: sometimes too stretchy, sometimes too fragile, sometimes both.1,3
Because connective tissue is everywhere, EDS is a whole-body condition, not simply “bendy joints.” It is estimated to affect roughly 1 in 5,000 people, though most researchers believe the true figure is far higher because so many cases are missed or misdiagnosed.4
Why a zebra? Medical students are taught, “When you hear hoofbeats, think horses, not zebras” — look for the common explanation first. People with EDS are the zebras: the rare, overlooked answer that doctors were trained not to expect. The zebra has become the global symbol of the EDS community, a quiet reminder that sometimes the unusual answer is the correct one. |
Under the 2017 International Classification — still the framework used today — EDS is divided into 13 recognised subtypes, caused by variants in 19 different genes. Almost all of these genes are involved in building or processing collagen and the extracellular matrix that surrounds our cells.1,2
Most subtypes follow one of two inheritance patterns. In autosomal dominant types, a single altered copy of the gene is enough to cause the condition, and an affected parent has a 50% chance of passing it to each child. In autosomal recessive types, a child must inherit an altered copy from both parents. Many cases also arise from new (de novo) variants, with no prior family history at all.1
The great exception is hypermobile EDS (hEDS). It is by far the most common subtype — estimated to make up around 90% of all EDS — yet it is the only one with no confirmed genetic marker. There is currently no blood test for it; diagnosis rests entirely on clinical criteria. The landmark HEDGE study (Hypermobile Ehlers-Danlos Genetic Evaluation) sequenced the whole genomes of more than 1,000 people with hEDS in search of the gene (or genes) responsible. Early findings suggest hEDS may eventually be split into several genetically distinct subtypes rather than explained by a single gene, and researchers are also investigating the Kallikrein gene family as a possible contributor.4,7,17
Each subtype shares the common thread of fragile or overly elastic connective tissue, but they differ enormously in which tissues are affected and how dangerous the condition can be. The table below summarises the inheritance and genetic basis of each; the profiles that follow describe the characteristic symptoms and health risks.1,2
Subtype | Inheritance | Gene(s) affected |
Hypermobile EDS (hEDS) | Autosomal dominant | Unknown — clinical diagnosis only |
Classical EDS (cEDS) | Autosomal dominant | COL5A1, COL5A2 (rarely COL1A1) |
Classical-like EDS (clEDS) | Autosomal recessive | TNXB (type 2: AEBP1) |
Cardiac-valvular EDS (cvEDS) | Autosomal recessive | COL1A2 |
Vascular EDS (vEDS) | Autosomal dominant | COL3A1 (rarely COL1A1) |
Arthrochalasia EDS (aEDS) | Autosomal dominant | COL1A1, COL1A2 |
Dermatosparaxis EDS (dEDS) | Autosomal recessive | ADAMTS2 |
Kyphoscoliotic EDS (kEDS) | Autosomal recessive | PLOD1, FKBP14 |
Brittle Cornea Syndrome (BCS) | Autosomal recessive | ZNF469, PRDM5 |
Spondylodysplastic EDS (spEDS) | Autosomal recessive | B4GALT7, B3GALT6, SLC39A13 |
Musculocontractural EDS (mcEDS) | Autosomal recessive | CHST14, DSE |
Myopathic EDS (mEDS) | Dominant or recessive | COL12A1 |
Periodontal EDS (pEDS) | Autosomal dominant | C1R, C1S |
Hallmarks are generalised joint hypermobility, soft or velvety skin, and persistent joint pain. Joints sublux (partially slip) or fully dislocate easily and repeatedly, leading to chronic pain, early osteoarthritis, and injuries from ordinary movement. hEDS is profoundly multisystemic: it travels with fatigue, dysautonomia, digestive problems, anxiety, and the comorbidity clusters described later in this post. While rarely life-threatening in itself, it is frequently life-altering, and a small number of people develop aortic root enlargement that warrants monitoring.4
Caused chiefly by variants in COL5A1 or COL5A2 (type V collagen), cEDS is marked by highly stretchy (hyperextensible) skin, fragile skin that splits easily, wide “cigarette-paper” atrophic scars, easy bruising, and generalised joint hypermobility. Wounds heal slowly and poorly, and surgical stitches may not hold well.1,4
Caused by variants in COL3A1 (type III collagen), vEDS is the most dangerous subtype and demands the greatest caution. The walls of arteries, the intestine, and the uterus are fragile and can rupture suddenly, sometimes without warning. Median life expectancy is reduced — historically around 40–50 years — and arterial dissection or organ rupture are medical emergencies. People with vEDS often have thin, translucent skin through which veins are visible, a characteristic facial appearance, and extensive bruising. Pregnancy carries serious risk and requires specialist obstetric care. A vEDS diagnosis changes how clinicians approach everything from routine procedures to childbirth, which is why accurate identification is critical.1,12
Classical-like EDS (clEDS): Linked to TNXB (with a second type caused by AEBP1). Skin is hyperextensible and velvety, joints are hypermobile, and bruising is easy, but — unlike classical EDS — atrophic scarring is absent. The AEBP1 type can carry vascular risk.1
Cardiac-valvular EDS (cvEDS): Caused by complete loss of the COL1A2 protein. Alongside joint and skin signs, it brings progressive, severe heart-valve disease (aortic and mitral valves) that may require surgical repair or replacement.1
Arthrochalasia EDS (aEDS): Caused by COL1A1/COL1A2 variants. Features include severe generalised hypermobility, recurrent dislocations, and congenital bilateral hip dislocation present from birth.1
Dermatosparaxis EDS (dEDS): Caused by ADAMTS2. Skin is extremely fragile, soft, doughy, and sagging, with significant bruising and slow healing; children may have a distinctive facial appearance.1
Kyphoscoliotic EDS (kEDS): Caused by PLOD1 or FKBP14. Marked by congenital muscle weakness (hypotonia) and a progressive curvature of the spine present from birth, fragile eyes, and joint instability.1
Brittle Cornea Syndrome (BCS): Caused by ZNF469 or PRDM5. The cornea is dangerously thin and can perforate; eyes are vulnerable and protective measures are essential to preserve vision.1
Spondylodysplastic EDS (spEDS): Caused by B4GALT7, B3GALT6, or SLC39A13. Features short stature, bowing of the limbs, muscle weakness, and skeletal differences.1
Musculocontractural EDS (mcEDS): Caused by CHST14 or DSE. Brings joint contractures, distinctive facial and hand features, fragile skin, and a range of structural anomalies.1
Myopathic EDS (mEDS): Caused by COL12A1. Combines muscle weakness (improving with age) with both hypermobile distal joints and contractures of larger proximal joints.1
Periodontal EDS (pEDS): Caused by C1R or C1S. Distinguished by early, severe gum disease and loss of the tissue that anchors teeth, alongside skin fragility and bruising.1
It can be hard for those who have never experienced it to grasp how much EDS can take from a person’s daily life. Because the joints, skin, and internal systems are involved together, the burden is cumulative and often invisible to the outside world. Educating the wider community about this is part of why we are writing this post.
Pain, instability, and fatigue. Many people live with chronic, widespread pain and joints that subluxate or dislocate during ordinary activities — reaching for a cup, rolling over in bed, even sneezing. The constant effort of holding unstable joints in place, combined with poor sleep and the body working overtime, produces a deep, persistent fatigue that rest does not fully relieve. Skin bruises and tears easily, and wounds can heal slowly.
Mobility aids and supports. To protect joints and conserve energy, people may use bracing and splints (including custom ring splints for hypermobile fingers), kinesiology tape, orthotics, and ankle-foot supports. Some need canes, crutches, walkers, or wheelchairs — not as a “last resort” but as tools that make daily life and participation possible. Clinicians weigh these carefully, because the body deconditions quickly when movement stops, and over-reliance on rigid bracing can weaken muscles. The right balance is individual and best guided by a therapist experienced in EDS.11
Feeding tubes and nutrition. In more severe cases — particularly where the digestive system is affected by gastroparesis (delayed stomach emptying) and dysmotility — eating enough to stay nourished becomes genuinely difficult. Nausea, early fullness, reflux, and abdominal pain can make meals an ordeal. Some people require specialised, clinician-guided nutritional support, and a small number rely on feeding tubes or intravenous nutrition to survive. Any dietary change in EDS should be made with proper professional guidance, both to protect nutrition and to avoid the pitfalls of overly restrictive eating.8
Being disbelieved. Perhaps the most corrosive part of the experience is medical disbelief. Because symptoms are multisystemic and often invisible, and because awareness among clinicians remains patchy, people — women especially — are frequently told their symptoms are anxiety, attention-seeking, or imagined. The result is an average diagnostic delay of many years and, for some, genuine medical trauma. Being believed is itself part of the treatment.17
EDS rarely travels alone. Clinicians increasingly describe overlapping clusters — sometimes called the “trifecta” or the “pentad” — of conditions that commonly co-occur and worsen one another:10
This is also where the neurodivergence link returns. Joint hypermobility appears to sit alongside autism, ADHD, dysautonomia, and chronic pain as part of a shared picture — which is exactly why so many in our community find that one diagnosis leads to another.13,14
For the 12 subtypes with a known genetic cause, diagnosis combines a clinical assessment with genetic (usually blood) testing to confirm the responsible variant. In Australia this typically involves referral to a clinical geneticist.1,3
Hypermobile EDS is different. With no genetic test available, it is diagnosed clinically against the 2017 criteria, which require all three of the following:4,5
People with symptomatic hypermobility who do not meet the full criteria are described as having a Hypermobility Spectrum Disorder (HSD) — a label that carries the same symptoms and deserves the same care, even though it is not always recognised by every health system.4
Coming soon: the Road to 2026 The diagnostic criteria are being revised right now. The Ehlers-Danlos Society’s “Road to 2026” initiative is due to publish updated criteria on 1 December 2026, drawing on the HEDGE genetic study and a large international criteria-review study. The expected direction is toward wider, more inclusive recognition — an expanded set of joint assessments beyond the Beighton score and formal weight given to the systemic, multisystem features that truly define the condition. For the many people currently stuck in diagnostic limbo, this is genuinely hopeful news. |
Because EDS crosses so many body systems, no single specialty “owns” it. Good care is multidisciplinary and coordinated — most often by a GP or, for children, a paediatrician — with specialists brought in as needed.3,15
General Practitioner (GP): the hub of care, coordinating referrals and, in Australia, setting up a chronic disease management plan that unlocks Medicare rebates for allied health.
Clinical geneticist / genetic counsellor: confirms the subtype through testing (for the non-hypermobile types) and advises on inheritance and family planning.
Rheumatologist: assesses joints and connective tissue and helps coordinate management; some are trained to diagnose hEDS, though it is wise to confirm a particular rheumatologist’s interest in EDS.
Cardiologist: monitors the heart and aorta (echocardiograms) and manages POTS and other dysautonomia; central to vascular EDS care.
Gastroenterologist: investigates and manages reflux, gastroparesis, and motility problems.
Pain medicine specialist: helps with chronic pain that does not respond to first-line measures.
Immunologist / allergist: investigates and treats suspected MCAS.
Physiotherapist, exercise physiologist & occupational therapist: the cornerstone of day-to-day management — building strength and joint stability, pacing activity, and prescribing aids and adaptations.
Other roles as needed: neurologist or neurosurgeon (spinal and craniocervical issues), dentist (jaw hypermobility, anaesthetic that may work less predictably), obstetrician (higher-risk pregnancy), dietitian, and psychologist for the emotional load.15
There is no single dedicated EDS clinic in Adelaide — as across most of Australia, care is assembled from a multidisciplinary team and usually begins with a GP referral. The starting points below were gathered from public listings and patient communities to help you begin the conversation; and it is always worth confirming a practitioner’s current experience with EDS before booking.
Genetics — public pathway
Genetics — private
Rheumatology
EDS interest varies between rheumatologists — ask your GP to refer to someone experienced in connective tissue disorders.
Cardiology — heart rhythm & POTS
EDS-aware physiotherapy
Occupational therapy
Psychology
Dietitian
Dysautonomia / POTS support
National networks
There is no cure for EDS and no medication that repairs the underlying collagen difference. Management focuses on protecting joints, easing symptoms, treating comorbidities, and improving day-to-day function. What follows is general information, not medical advice — every plan should be individualised with your healthcare team.3
Gentle, graded strengthening is the most evidence-supported strategy for hypermobile EDS: stronger muscles act as “active splints” that stabilise loose joints. The approach must be careful and progressive — low-impact options such as recumbent cycling, hydrotherapy, and clinical Pilates are common — and is best guided by a physiotherapist or exercise physiologist who understands EDS. Pacing (balancing activity and rest to avoid boom-and-bust cycles) is a skill in its own right.9
Bracing, splints, ring splints for the fingers, kinesiology tape, in-shoe orthotics, ankle-foot orthotics, TENS machines for pain, and mobility aids from canes to power wheelchairs can all play a role — chosen for the individual and reviewed over time so they help without causing deconditioning.11
Pain: managed with a layered approach; some people benefit from low-dose naltrexone (LDN) and other agents tailored by a pain specialist.9
POTS: first-line measures include increasing fluid and salt intake, compression garments, and graded exercise; medications to steady heart rate or support blood pressure (for example beta-blockers, or others such as midodrine) are added when needed.8,9
MCAS: histamine-receptor antagonists (antihistamines) and mast-cell stabilisers, plus identifying and avoiding individual triggers, under an allergist or immunologist.8
Gut symptoms: motility agents (such as prucalopride) and carefully supervised dietary adjustments, delivered with proper nutritional guidance.8
Vascular EDS: the beta-blocker celiprolol has been shown to reduce arterial dissections and ruptures and is widely used to protect blood vessels, typically started low and increased gradually with regular vascular imaging and specialist oversight.12
This is a hopeful moment in EDS research. The HEDGE study’s whole-genome sequencing aims to uncover the genetic basis of hEDS; promising work on an extracellular-matrix “fragmentation” pattern in patient blood could one day provide the first objective biomarker for hEDS and HSD; live mouse models of every subtype are accelerating the search for real treatments; and the Road to 2026 update promises clearer, more inclusive diagnosis. None of this is a cure yet — but the science is moving in the right direction, and faster than it has in decades.7,17,18
Living in a body that is held together a little differently can be exhausting, frightening, and lonely — especially when the world cannot see what you carry. If you recognise yourself or someone you love in these pages, please know that seeking answers is not being “difficult” or “dramatic.” It is advocating for a body that deserves to be understood and supported.
And if any part of this has stirred up distress, you don’t have to sit with it alone — a trusted GP, a loved one, or a support line can help you find your footing.
Flora’s Kiss Blog is here to support our community by sharing the research, stories, and information that help make sense of experiences like these. You are not alone, and you never were.
This post is for education and community support and is not a substitute for individual medical advice. Always consult qualified healthcare professionals about diagnosis and treatment.
flora’s kiss blog • supporting our community • june 2026
