Understanding Hypermobility, Joint Instability & Ehlers-Danlos Syndrome (EDS)

Flexible joints are not always a problem. Learn how hypermobility, HSD and EDS differ, how body awareness can relate to movement, and when physiotherapy, mental wellbeing support or medical assessment may help.

  • Hypermobility
  • HSD
  • EDS
  • Joint stability
  • Body awareness

What Is Joint Hypermobility?

Joint hypermobility means that a joint moves further than expected. Some people have always been flexible and have no pain or difficulty with everyday activities. Flexibility alone does not mean that something is wrong or that treatment is needed.

Generalized hypermobility involves joints across the body. Localized hypermobility affects a joint or a limited area. Peripheral hypermobility mainly involves the hands and feet. These descriptions tell us where extra movement occurs, rather than establishing a diagnosis.

Hypermobility and instability are different. A joint can move a long way without feeling unreliable. Instability describes difficulty keeping a joint securely controlled during activity. Pain, repeated injuries or difficulty doing things that matter to you are reasons to explore the whole picture.

Sources: [1]

How Do Hypermobility, HSD and EDS Differ?

Hypermobility spectrum disorders (HSD) describe symptomatic joint hypermobility after other explanations have been considered. HSD can have a substantial effect on daily life. It should not automatically be treated as a mild version of EDS.

Ehlers-Danlos syndromes (EDS) are a group of inherited connective tissue disorders. Connective tissue helps support structures such as joints and skin. Hypermobile EDS (hEDS) is one subtype. Its diagnosis requires a clinical assessment that goes beyond flexible joints and considers other physical features, history and alternative explanations.

Other subtypes, including classical and vascular EDS, have different defining features and medical implications. Genetic testing is available for many EDS subtypes, but there is currently no established diagnostic genetic test for hEDS.

A clinician can help decide whether specialist assessment or genetic evaluation is appropriate. Not everyone with hypermobile joints has EDS.

Sources: [1], [2], [3]

Common Signs and Symptoms

Some people experience unusually mobile joints together with recurrent sprains, persistent joint pain or a feeling that a joint may give way. A subluxation is a partial loss of normal joint alignment; a dislocation is a complete loss of alignment.

These need appropriate assessment rather than repeated attempts to demonstrate them.

Fatigue, reduced activity tolerance, recurrent injuries, balance difficulties or problems coordinating movement can also occur. The combination and severity vary. No symptom list can determine whether someone has HSD or EDS, and other causes of these symptoms still need consideration.

Sources: [4], [5]

Have You Ever Been Told You're Clumsy?

Have you ever been told that you're clumsy, frequently bump into things, trip over your own feet or seem to lose your balance more often than others?

Sometimes, these experiences may be associated with differences in proprioception, which is your body's ability to sense where your joints and limbs are positioned and how they're moving.

For some individuals with joint hypermobility, reduced joint-position awareness or difficulty controlling movement may contribute to feelings of instability, stumbling or poor coordination.

However, clumsiness alone does not indicate hypermobility or Ehlers-Danlos syndrome. Many other factors can affect balance and coordination.

If these experiences occur alongside unusually flexible joints, recurrent sprains or dislocations, persistent joint pain or feelings of instability, they may be worth discussing with a qualified healthcare professional.

Physiotherapy assessment can help explore joint mobility, strength, balance, proprioception and movement coordination to better understand factors contributing to these difficulties.

Clumsiness is not an EDS diagnostic criterion. Vision, inner-ear balance problems, neurological or developmental differences, attention, footwear and the environment can all matter. New or worsening coordination problems, unexplained falls, weakness or fainting warrant medical assessment.

Sudden neurological symptoms need urgent help, as explained below.

Sources: [3], [6], [17], [18], [26]

Proprioception: Knowing Where Your Body Is Moving

Proprioception is the sense of joint position, movement and force. It helps you judge where a foot is landing or how much effort to use when lifting something without constantly watching your body.

Structural laxity concerns how much a joint can move; proprioceptive accuracy concerns how precisely that movement or position is sensed. They can interact, but they are not interchangeable. Studies have found joint-position differences in some hypermobile groups, especially in the lower limbs.

This does not mean that every hypermobile person has a sensory deficit, or that proprioception alone explains an injury.

Assessment can guide graded joint-position practice, balance tasks, strengthening and everyday movement training. The aim is useful, confident control, with tasks adapted to your symptoms and ability.

Sources: [6], [7], [8]

Interoception: Understanding Internal Body Signals

Interoception involves sensing and interpreting internal signals, such as heartbeat, breathing, hunger, fullness and temperature. It differs from sensing where a joint is positioned.

Accuracy on a particular body-signal task, attention to sensations, interpretation of those sensations and emotional awareness are related but distinct. Noticing more symptoms does not necessarily mean greater accuracy, and feeling a sensation intensely does not establish its cause.

Research linking hypermobility, interoception and anxiety is still developing. A small 2014 study of healthy volunteers found relationships between hypermobility, heartbeat-task performance and anxiety. It does not establish a single interoceptive profile for people with diagnosed EDS or prove that one factor causes another.

Body-awareness education may help you describe symptoms and identify comfortable ways to pace activity or manage distress. It should be individualized, rather than requiring constant monitoring or treating bodily sensations as unreliable.

New or concerning symptoms still deserve medical attention.

Sources: [9], [10]

What Does the Nine-Point Beighton Score Measure?

The Beighton score records selected joint movements. This guide explains what a clinician assesses, not a home exercise or a challenge to achieve a higher score. Do not force, repeatedly stretch or provoke a painful or unstable joint to test it.

The Five Beighton Movements

A clinician checks both sides for the first four movements. The forward bend contributes one point: 2 + 2 + 2 + 2 + 1 = 9 points maximum.

  1. Little finger

    Up to 2 points

    The little finger extends beyond 90° at its base knuckle.

    1 point per side

    A clinician checks the joint and angle; do not force the finger backwards.

  2. Thumb

    Up to 2 points

    The thumb can be brought to touch the forearm.

    1 point per side

    Do not pull a painful or unstable thumb into position.

  3. Elbow

    Up to 2 points

    The elbow extends more than 10° beyond straight.

    1 point per side

    Accurate assessment may need an angle-measuring tool.

  4. Knee

    Up to 2 points

    The knee extends more than 10° beyond straight.

    1 point per side

    Do not push or lock the knee backwards to demonstrate a score.

  5. Forward bend

    Up to 1 point

    Both palms rest flat on the floor with the knees straight.

    1 point total

    Do not force a stretch, lose balance or provoke symptoms to reach the floor.

This text guide explains clinical observations. It is not a self-testing challenge or an illustrated demonstration.

Understanding Your Score

For the generalized-hypermobility component of the 2017 hEDS criteria, the threshold is at least 5 out of 9 for biologically mature people up to age 50, and at least 4 over age 50. Meeting a threshold is only one part of assessment, not a diagnosis of hEDS.

The 2023 pediatric framework applies from age five until biological maturity and uses at least 6 out of 9 for generalized hypermobility. Children are assessed using that framework rather than simply applying adult hEDS criteria; reassessment can occur at maturity.

Younger children need developmentally appropriate clinical evaluation.

Age, injury, surgery and changes in flexibility can affect the current score. Historical mobility matters, and clinicians may use a five-question history alongside examination. Shoulders, hips, ankles and many other joints are not directly scored, so a low score does not automatically exclude a clinically important problem.

Demonstration Resources

GoodHope links to an external Beighton demonstration in its professional guidance. Demonstrations support discussion with a clinician; they are not instructions to push joints to their limits.

View GoodHope's assessment guidance and demonstration link (external website, opens in a new tab)

Important Assessment Considerations

A screening result is one part of a broader assessment. A clinician considers your history, symptoms and other joints, and may use measurement tools. Discuss limitations or difficulty performing a movement rather than forcing it.

Sources: [4], [11], [12], [22], [28], [29], [30], [31]

Skin and Other Connective Tissue Features

A clinician may ask about unusually soft or velvety skin, skin that stretches more than expected, easy bruising, widened or sunken scars, wound healing and tissue fragility. Hernias or other tissue findings can also be relevant in the broader assessment.

These features differ between EDS subtypes. Marked skin fragility or unusual scarring may lead a clinician to consider conditions beyond hEDS. A single feature cannot establish the diagnosis. Do not pull forcefully on your skin or use an online skin-stretching demonstration as a diagnostic test.

Sources: [3], [13], [25]

Other Health Concerns That May Occur Alongside Hypermobility

Gastrointestinal Symptoms

Digestive symptoms such as reflux, abdominal discomfort, bloating, constipation and nausea are reported in HSD/hEDS. Disorders of gut-brain interaction involve changes in how the gut functions and communicates with the nervous system.

Symptoms are real, and mechanisms are not fully understood. This association does not establish that EDS causes Crohn's disease or ulcerative colitis. Persistent symptoms, bleeding or unexplained weight loss need medical assessment.

Autonomic Symptoms and POTS

Orthostatic intolerance means symptoms when upright, such as dizziness or palpitations. POTS, or postural orthostatic tachycardia syndrome, is one possible diagnosis and has defined clinical criteria. Not every episode of dizziness is POTS; other causes must be considered.

Mental Health and Neurodevelopment

Anxiety and distress can coexist with chronic pain and uncertainty. Associations with ADHD and autism have also been reported, including in a retrospective study of children attending a specialist service. Such observations do not establish causation, predict an individual's diagnosis or justify diagnosing a neurodevelopmental condition from flexible joints.

Fatigue, Headaches and Sleep

Fatigue, headaches, sleep difficulties and persistent pain can affect daily life. They may have several contributing causes and deserve assessment in their own right, rather than being automatically attributed to EDS.

Sources: [4], [10], [14], [15], [16]

How Can Function First Physiotherapy Help With Hypermobility?

An Individual Clinical Philosophy

At Shuqair Health & Wellness in Sarnia, Function First describes our individualized clinical approach: start with your concerns, assessment and practical goals, then adapt care to your response. This is a clinical philosophy, not a separately proven treatment system.

Joint Control, Strength and Graded Loading

A plan may include strength and graded loading, joint control, proprioceptive practice, balance, coordination and rehabilitation after recurrent sprains or instability. Activity pacing and symptom-management strategies can support a manageable progression toward everyday tasks, work and recreation.

Functional Movement and Activity Tolerance

The focus is functional capacity, activity tolerance and confidence, rather than forcing joints into an ideal posture. Exercise should be adapted to the person, including relevant medical conditions. Physiotherapy does not cure an inherited connective tissue disorder.

What the Evidence Can Tell Us

Systematic reviews suggest that exercise and rehabilitation can help, but studies are often small and varied. They do not establish that one proprietary biomechanics method is superior. Function First does not imply affiliation with Functional Patterns.

Sources: [5], [8]

Supporting Both Physical and Mental Wellbeing

Coping and Emotional Adjustment

Living with persistent symptoms can affect confidence, relationships and emotional wellbeing. Psychotherapy may support coping with pain-related distress, anxiety, stress, diagnostic uncertainty, fear of injury, activity avoidance, emotional adjustment or sleep-related stress.

Support Alongside Physical Care

This support can complement physiotherapy and medical care. It does not treat the underlying connective tissue disorder, and offering it does not mean that physical symptoms are imaginary or purely psychological. Not everyone with hypermobility needs psychotherapy.

Understanding the Evidence

Research on psychological therapies for chronic pain supports modest average benefits for some outcomes, especially for cognitive behavioural approaches. Much of that evidence concerns other chronic pain populations, so it should not be presented as proof of a specific EDS treatment.

Goals and the type of support should be agreed with the individual.

Sources: [19], [20]

When Should You Seek Professional Assessment?

A routine physiotherapy assessment may help with recurrent sprains, joint instability, persistent musculoskeletal pain or activity limitations. Repeated dislocations, worsening symptoms or possible connective tissue features also merit discussion with a medical clinician.

Seek medical assessment for new or worsening coordination problems, unexplained falls, fainting, significant weakness or symptoms during exertion. Do not begin strenuous self-testing or exercise to investigate unexplained fainting, exertional collapse or concerning cardiovascular symptoms.

Call 911 for sudden one-sided weakness, facial drooping, difficulty speaking, severe chest pain, collapse during exercise or loss of consciousness with incomplete recovery. Sudden neurological symptoms need urgent assessment even if they improve.

Sources: [17], [18]

Specialized EDS & Hypermobility Resources

Children & Adolescents

SickKids EDS Clinic

Toronto, Ontario

Pediatric EDS assessment, diagnosis, education and coordinated care, with other team members involved as needed.

Visit the SickKids EDS Clinic (external website, opens in a new tab)

Adults

GoodHope EDS Clinic

Toronto, Ontario

Specialist assessment, education, self-management and referral resources, subject to the program’s current eligibility criteria.

Visit the GoodHope EDS Clinic (external website, opens in a new tab)

General Education

The Ehlers-Danlos Society

International educational resource

Information about EDS, HSD, diagnostic considerations, body systems and living with these conditions.

Explore EDS and HSD education (external website, opens in a new tab)

Referral requirements and eligibility vary by clinic. Please consult each organization's official website for current information.

SH&W is not affiliated with SickKids, GoodHope or The Ehlers-Danlos Society. External resources support, rather than replace, discussion with your healthcare team.

Why the Zebra?

The Ehlers-Danlos Society's zebra symbol recalls a medical teaching phrase about expecting common conditions when hearing hoofbeats. The symbol encourages recognition that less common explanations also deserve consideration.

It is not a diagnostic sign.

Additional Resources & References

The detailed links below offer patient education, referral guidance and skin-feature information. The optional HAT resource is in the Beighton section above; its result does not replace clinical assessment.

Sources: [1], [2], [3], [11], [21], [22], [23], [24], [27]

Further reading

Discuss your goals with us

These resources support discussion and do not replace an individualized physiotherapy assessment.