How to Tell If You’re Hypermobile: Signs & Tests

Hypermobility shows up as joints that bend further than the usual range of motion, and the standard clinical test for it is a nine-point scoring system called the Beighton Score that checks specific joints in your fingers, thumbs, elbows, knees, and spine. But scoring well on that test is only part of the picture. Many people are hypermobile without realizing it, because the most telling signs are not always the party tricks like bending a thumb to your wrist. Chronic pain, clumsiness, fatigue, and even trouble at the dentist can all point toward joint hypermobility, and figuring out where you fall on the spectrum involves more than a single flexibility check.

The Beighton Score and What It Actually Measures

The Beighton Score is the tool clinicians have used for decades to assess generalized joint hypermobility. It checks nine specific movements: bending each pinky finger back past 90 degrees (one point per side), pulling each thumb down to touch the forearm (one point per side), hyperextending each elbow past straight (one point per side), hyperextending each knee past straight (one point per side), and placing your palms flat on the floor with your knees locked (one point). You get a score out of nine, and the usual threshold for generalized hypermobility in adults is four or above, though the cutoff is sometimes raised to five or six for younger people, since flexibility naturally decreases with age.

The test is easy to perform and widely recognized, but it has real limitations. A systematic review in Rheumatology International found that the Beighton Score is weighted heavily toward upper-limb joints, ignoring major joints like the hips, ankles, and shoulders. The review concluded that the score consistently failed to identify hypermobility in joints outside its narrow set of movements, and that it should not be the sole tool used to rule out generalized hypermobility.¹ In other words, you can score below the cutoff and still be hypermobile in joints the test never checked. A clinician’s broader assessment of your full range of motion matters more than hitting a specific number.

Researchers have explored expanding the joint tests beyond the Beighton set. One study tested movements including shoulder external rotation, hip abduction, hip rotation, ankle flexibility, and big toe extension alongside the standard Beighton maneuvers, looking at whether a broader battery could better capture generalized hypermobility.² This kind of expanded testing is not yet standard practice, but it underscores the gap between what the Beighton Score measures and what hypermobility actually looks like across the whole body.

Screening Yourself at Home

Before you ever see a clinician, there is a validated self-screening tool called the Five-Part Questionnaire (5PQ). It asks five yes-or-no questions about your flexibility history, such as whether you could place your palms flat on the floor without bending your knees, whether you could bend your thumb to touch your forearm, whether you used to amuse friends by contorting your body, whether your kneecap or shoulder dislocated more than once, and whether you consider yourself “double-jointed.” Answering yes to two or more of the five questions suggests you may have generalized hypermobility and is usually considered a reason to pursue formal assessment.

Validation studies show the 5PQ is a decent first filter. In a Swedish study of non-clinical adults, the questionnaire hit about 91% sensitivity and 75% specificity when compared against Beighton Score cutoffs, meaning it caught most truly hypermobile people while letting through a moderate number of false positives.³ A study in pregnant women found somewhat lower performance, with about 84% sensitivity and 62% specificity, along with a 38% false-positive rate.⁴ A Chinese version of the questionnaire similarly showed roughly 79% sensitivity and 66% specificity in young adults.⁵

The pattern across all of these studies is consistent: the 5PQ is good at catching hypermobility (high sensitivity) but will flag some people who turn out not to meet formal criteria (moderate specificity). It works best as a screening tool, not a diagnosis. If you answer yes to two or more questions, it is worth raising the topic with a doctor, but the questionnaire alone does not confirm anything.

Signs You Might Not Realize Are Related

The obvious sign of hypermobility is joints that move past the expected range. But the symptoms that actually bring people to a doctor’s office are more often pain, fatigue, and a sense that something is off with your body’s coordination. Generalized joint hypermobility is highly prevalent among people diagnosed with chronic pain, and when that pain affects four or more joints for three months or longer without another explanation, clinicians begin considering hypermobility-related conditions.⁶

One underappreciated sign is poor proprioception, your body’s sense of where your limbs are in space. Hypermobile people tend to be less precise at knowing where their joints are without looking. Studies in both adults and children have found this consistently. One study found that hypermobile individuals had significantly greater errors in sensing elbow and knee position compared to non-hypermobile controls.⁷ Research in Ehlers-Danlos syndrome patients showed roughly twice as much scatter in hand-position estimates compared to healthy controls, and this imprecision did not correlate with pain severity, suggesting it is a feature of the connective tissue difference itself rather than just a side effect of hurting.⁸ Children with hypermobility syndrome showed the same pattern of poorer joint position sense and joint kinesthesia.⁹

In practice, this might show up as clumsiness, frequent minor injuries, a tendency to roll your ankles, or difficulty with fine motor tasks. If you have always been the person who bumps into door frames or drops things more than seems normal, and you also happen to be flexible, the proprioceptive connection is worth considering.

Whole-Body Clues Beyond the Joints

Hypermobility is a connective tissue trait, and connective tissue is everywhere in the body. That means the signs can extend well beyond your joints. The conditions most associated with symptomatic hypermobility, hypermobile Ehlers-Danlos syndrome (hEDS) and hypermobility spectrum disorders (HSD), involve musculoskeletal pain, dysautonomia, and gastrointestinal symptoms as part of their recognized picture.¹⁰

Dysautonomia, a dysfunction of the autonomic nervous system that regulates heart rate, blood pressure, digestion, and temperature, is strikingly common. In one study of patients with hEDS and HSD, about 70% were clinically labeled with dysautonomia, with a higher rate in hEDS than HSD.¹¹ Another study using tilt-table testing found that about half of hypermobile patients showed postural orthostatic tachycardia (a racing heart upon standing) and another third showed orthostatic intolerance, with only 20% testing normal.¹² If you feel lightheaded when standing up, get heart palpitations for no obvious reason, or struggle with exercise tolerance in a way that seems disproportionate to your fitness level, these could be dysautonomia symptoms worth mentioning when you bring up hypermobility.

Gastrointestinal complaints like bloating, reflux, constipation, and nausea are also frequently reported. An exploratory study at a tertiary care center compared motility testing in patients with HSD against controls and found no statistically significant differences between groups overall. However, every single patient with a Beighton Score of six or higher had at least one abnormal motility test, even though the group-level comparison did not reach significance.¹³ The gut connection remains an active area of research. Gastrointestinal symptoms alone do not point to hypermobility, but when they appear alongside joint pain and autonomic symptoms, the combination can be a useful signal.

Sleep trouble is another piece of the puzzle. Patients with hEDS and HSD showed significantly lower sleep efficiency and higher rates of insomnia compared to controls in a case-control study.¹⁴ Separately, increasing pain frequency in hEDS was independently associated with longer time to fall asleep and with worse mental and physical health days, showing a clear dose-response pattern.¹⁵

Who Is More Likely to Be Hypermobile

Hypermobility prevalence varies considerably by age, sex, and ethnicity. A systematic review of studies in children, adolescents, and young adults confirmed that younger people are more hypermobile than older people, and that after puberty, girls and women show higher prevalence than boys and men. Before puberty, gender differences are minimal.¹⁶ This means that if you are a woman in your twenties who scored just below the Beighton cutoff, you may still warrant a closer look, especially if you had more flexibility as a teenager that has since decreased.

Hormonal influences play a role in this sex difference. A systematic review and meta-analysis of the effects of sex hormones on ligament properties found that hormonal shifts from oral contraceptive use, pregnancy, and menopause can all affect ligament behavior.¹⁷ Some people notice that their joints feel looser or more painful at certain points in their menstrual cycle, during pregnancy, or after starting or stopping hormonal contraception. These fluctuations do not create hypermobility from nothing, but they can make existing hypermobility more or less symptomatic over time.

When Hypermobility Becomes a Diagnosis

Being hypermobile is not inherently a medical problem. Plenty of people have flexible joints and never experience pain, instability, or systemic symptoms. The shift from “trait” to “condition” happens when hypermobility comes with meaningful symptoms. The 2017 international classification created two main categories for symptomatic hypermobility: hypermobile Ehlers-Danlos syndrome (hEDS) and hypermobility spectrum disorders (HSD).¹⁸

Hypermobile EDS has the more specific diagnostic criteria. Beyond meeting a Beighton Score threshold, you need to show features from two of three additional categories: systemic connective tissue signs (like unusually stretchy or soft skin, unexplained stretch marks, or mild skin fragility), a family history of hEDS, and musculoskeletal complications (like chronic widespread pain, recurrent joint dislocations, or certain structural features). If you meet the hypermobility requirement and have significant symptoms but do not tick enough boxes for hEDS, you would likely fall under the HSD umbrella. Both are real diagnoses with real clinical implications; HSD is not a “lesser” condition, just a different classification with somewhat broader criteria.

Joint hypermobility can also appear in other connective tissue conditions like Marfan syndrome. In one case report, a child presenting with hypermobile shoulders, knees, and thumbs went through genetic testing that ruled out Marfan syndrome and then ruled out classical and hypermobile EDS, illustrating that flexible joints alone do not automatically point to one specific diagnosis.¹⁹ For hEDS specifically, no genetic test currently exists, which is part of why diagnosis relies on clinical criteria. The molecular basis involves connective tissue broadly, with early genetic findings related to collagen alterations, though many subtypes of EDS involve genes outside collagen pathways.²⁰

Why Getting Diagnosed Often Takes Years

One of the most frustrating aspects of symptomatic hypermobility is how long it takes to get recognized. A study of women in Australia with EDS found that more than 60% first noticed symptoms over 15 years before they received a diagnosis. About 85% received other diagnoses first, with anxiety and depression being the most common misdiagnosis, followed by chronic pain conditions and chronic fatigue syndrome. Fibromyalgia was also frequently diagnosed before EDS was considered.²¹

The pattern makes a painful kind of sense. Someone shows up at a doctor’s office with fatigue, diffuse pain, sleep problems, and anxiety. Each symptom gets treated individually or attributed to stress or a psychological cause. Nobody thinks to check whether the patient’s joints are unusually flexible, because joint flexibility is not what brought them in. The systemic nature of connective tissue conditions means symptoms show up in so many different organ systems that they get parceled out to different specialists, none of whom sees the full picture. If you suspect hypermobility might be connecting a set of seemingly unrelated symptoms, bringing it up explicitly and asking for a Beighton assessment can short-circuit what otherwise tends to be a very long diagnostic journey.

The Neurodivergence Connection

An emerging area of research has found a surprisingly strong statistical link between joint hypermobility and neurodevelopmental conditions like autism and ADHD. A large cross-sectional study found that adults with autism were about three times more likely to have generalized joint hypermobility than controls, and about five times more likely to have symptomatic hypermobility, after adjusting for age, sex, and ethnicity.²² A separate study using different methodology found a similarly elevated odds ratio for symptomatic hypermobility in autistic adults.²³

A study looking at neurodivergent individuals more broadly (including ADHD alongside autism) found that about half of the neurodivergent group was hypermobile, compared to a general population rate of roughly 20%. The number of hypermobile joints in this group statistically mediated the relationship between neurodivergence and symptoms of both dysautonomia and pain, suggesting that joint hypermobility may be a shared biological thread linking these conditions rather than a coincidence.²⁴ The mechanism behind this overlap is not yet understood, but the clinical relevance is clear: if you are neurodivergent and dealing with unexplained pain, fatigue, or autonomic symptoms, screening for hypermobility is worth pursuing.

A Surprising Clue at the Dentist

One of the stranger signs that sometimes leads people toward a hypermobility diagnosis is local anesthetic that does not seem to work properly. In a large survey of people with Ehlers-Danlos syndromes, about 88% reported that dental local anesthetic failed to provide adequate numbing at some point, compared to about 33% of people without EDS. That is roughly a threefold difference.²⁵ The exact reason is not fully understood, but altered connective tissue may affect how anesthetic diffuses through tissue or how nerves respond to it.

This is not a diagnostic test on its own. Plenty of people without hypermobility have had a dental injection that did not take properly. But if you have a consistent history of needing extra numbing, multiple injections, or still feeling pain during dental work, and you also recognize yourself in the other signs discussed above, it is another data point worth adding to the conversation with a clinician. For some people, it ends up being the detail that finally prompts someone to check the joints.