Hypermobile or hEDS? Where the Line Actually Is

Being able to bend your thumb to your forearm is a party trick. It is not, on its own, a diagnosis.

A lot of people are hypermobile and perfectly fine — estimates vary, but flexible joints are common in the general population, and most of those people never need a doctor for it. So where is the line between "bendy" and hypermobile Ehlers-Danlos syndrome? It isn't how far you bend. It's what else is happening.

🪜 There is a spectrum, and it has names

This is the part that clears up most of the confusion, because these get used interchangeably and they aren't the same thing.

Asymptomatic joint hypermobility — your joints move beyond the typical range and it causes you no trouble. This is not a disorder. Dancers, gymnasts and a good chunk of the population sit here.

Hypermobility spectrum disorder (HSD) — hypermobility plus symptoms, most often pain and instability, but without meeting the full criteria for hEDS. Worth saying clearly: HSD is not "hEDS lite". It can be just as disabling, and it's managed the same way.

Hypermobile EDS (hEDS) — hypermobility plus a specific combination of systemic features, a family history where relevant, and other connective tissue disorders excluded, assessed against the 2017 international criteria.

Which label you end up with matters less than it feels like it should. Treatment is broadly the same across HSD and hEDS.

🔗 Want more like this? Browse all our hEDS guides →

🔍 Six things that suggest it's more than flexibility

1. Pain that moves

One bad knee is an injury. Pain that migrates — shoulder this week, hip the next — points to generalised instability rather than a single damaged joint. It's also the symptom most often read as exaggeration, because it doesn't behave like an injury.

2. Gut symptoms nobody can explain

Bloating, reflux, early fullness, an IBS label that never quite fitted. Connective tissue is in the gut wall too, and digestive symptoms are among the most reported non-joint features in hEDS.

3. Dizziness every time you stand

Orthostatic symptoms cluster with hypermobility often enough to be part of the recognised picture — the pattern covered in the trifecta. If standing up reliably makes the room grey out, that belongs in the conversation.

4. Fatigue that sleep doesn't touch

Not tiredness. The kind where you wake up having slept eight hours and feel like you didn't. There's a mechanical reason for it, explained in why hypermobility is so exhausting.

5. Skin that behaves differently

Stretchier than expected, unusually soft, bruises from nothing, scars that spread. Skin features are part of the diagnostic criteria and are the ones people are least likely to mention.

6. Someone else in the family

hEDS runs in families. A parent with "bad joints", a sibling who's also bendy, a grandmother whose hips went early — that history is diagnostically relevant, and worth asking about before an appointment.

📉 Why the Beighton score alone isn't enough

The Beighton score is the nine-point scale used to assess joint hypermobility, and it's where most assessments start. But it's a measure of flexibility, not of disease — you can score high and be perfectly healthy, and you can have hEDS while scoring lower than expected.

That second point catches a lot of adults out, because hypermobility tends to decrease with age. Plenty of people with hEDS would have scored far higher at fifteen than they do at forty. If you were the child who could do the splits and put their feet behind their head, say so — historical flexibility counts, and the criteria make room for it.

Our guide to the diagnostic tests covers what an assessment actually involves.

🩺 How to raise it usefully

• Lead with the systemic picture, not the flexibility. "I'm bendy" invites a shrug. "I have joint pain that moves, gut symptoms, dizziness on standing and easy bruising" invites a referral.

• Bring the family history, even if nobody was ever diagnosed. "Bad joints" running through a family is information.

• Mention what you could do as a child, not only what you can do now.

• Ask for a rheumatology or genetics referral specifically. That's more actionable than asking to be assessed for hEDS in a general appointment.

❓ Frequently asked questions

📚 Sources & further reading

The information in this article is drawn from the following sources. We encourage you to explore them.

• The Ehlers-Danlos Society — 2017 Diagnostic Criteria for Hypermobile EDS and HSD

• Ehlers-Danlos Support UK — Hypermobility Spectrum Disorders Explained

✍️ Written with care by Emma at SpoonieToolkitStudio.