Joint hypermobility means your joints move beyond the normal range of motion. Some people can bend their thumbs to their forearms, hyperextend their elbows or knees, or place their palms flat on the floor without bending their knees. Prevalence estimates range widely, from 3% to 57% of the population depending on age, sex, and ethnicity, and women are consistently more flexible than men at every age.
For many people, being extra flexible is harmless or even an advantage in dance, gymnastics, or yoga. But when that flexibility comes with chronic pain, frequent injuries, or other body-wide symptoms, it crosses into a condition that needs attention.
Why Some Joints Move Too Far
Joints are held together by ligaments, the thick bands of tissue that keep bones from moving too much or sliding out of position. In people with hypermobility, those ligaments are unusually loose. The root cause is a difference in collagen, the protein that gives ligaments, tendons, and joint capsules their strength and elasticity. Genes involved in collagen production create a version that is weaker or stretchier than typical, so the tissues that should act as the body’s natural braking system don’t hold joints in check.
Because collagen exists throughout the entire body, not just in joints, this structural difference can affect skin, blood vessels, the digestive tract, and other organs. That’s why hypermobility is sometimes part of a bigger picture rather than an isolated quirk of flexibility.
How Hypermobility Is Measured
Doctors typically use the Beighton Score, a simple nine-point physical exam. You earn one point for each of the following you can do:
- Bend forward and place your hands flat on the floor without bending your knees (1 point)
- Hyperextend each elbow past straight (1 point per side)
- Hyperextend each knee past straight (1 point per side)
- Bend each pinky finger back beyond 90 degrees (1 point per side)
- Bend each thumb back to touch the forearm (1 point per side)
A score of four or more, combined with joint pain in four or more joints lasting at least three months, points toward joint hypermobility syndrome. The score thresholds shift with age: adults over 50 only need a score of four because flexibility naturally declines over time, while younger adults may need to score five or higher when being evaluated for connective tissue disorders.
Hypermobility Spectrum Disorder vs. Ehlers-Danlos Syndrome
Not everyone with loose joints gets the same diagnosis. Hypermobile Ehlers-Danlos syndrome (hEDS) is the most common of 14 recognized Ehlers-Danlos subtypes, characterized by joint hypermobility, stretchy skin, and tissue fragility. Unlike most other subtypes, hEDS has no genetic test. It’s diagnosed clinically using a set of criteria established in 2017 that evaluate the degree of hypermobility, skin and tissue features, and family history.
People who have symptomatic hypermobility but don’t meet the full criteria for hEDS are often diagnosed with hypermobility spectrum disorder (HSD). In practice, the line between the two can be blurry. Research shows that people with hEDS tend to have higher Beighton scores along with more frequent joint dislocations, subluxations (partial dislocations), and orthopedic complications. But both groups can experience significant pain and functional limitations, and the day-to-day management is largely the same.
How Hypermobility Causes Pain
Loose joints are injury-prone joints. When ligaments can’t do their job of stabilizing a joint, the surrounding muscles, tendons, and soft tissues have to pick up the slack. Over time, this leads to overload: sprains, subluxations, full dislocations, tendon inflammation, and muscle spasms. These are the most common orthopedic complications of hypermobility.
The pain often follows a recognizable pattern. In the first decade of symptoms, pain tends to be localized and tied to specific injuries. You might roll an ankle repeatedly or feel a sharp ache in your shoulder after it partially slides out of position. Each incident is a small tissue injury, and your pain receptors respond exactly as they should.
Over time, though, the constant stream of microtraumas can change how your nervous system processes pain. What started as localized joint pain may become widespread, harder to pinpoint musculoskeletal pain. This shift, called central sensitization, means the brain’s pain alarm system has been turned up, responding more strongly to signals that wouldn’t normally register as painful. This is one reason why people with long-standing hypermobility sometimes develop pain that feels out of proportion to any visible injury.
Symptoms Beyond the Joints
Because collagen is a building block throughout the body, hypermobility-related conditions often come with symptoms that seem unrelated to flexibility. Autonomic nervous system dysfunction is one of the most common. The autonomic system controls involuntary functions like heart rate, blood pressure, digestion, and temperature regulation, and when it misfires, the effects can be wide-ranging.
In a study of patients with hEDS and hypermobility spectrum disorders, the most frequently reported symptoms tied to autonomic dysfunction were:
- Exercise intolerance: 78% of patients
- Persistent fatigue: 77%
- Dizziness with position changes: 70%
- Digestive symptoms (nausea, constipation, diarrhea, abdominal pain): 61%
- Palpitations: 54%
- Poor concentration or brain fog: 47%
- Fainting or near-fainting: 38%
Temperature regulation problems, chest discomfort, blood pooling in the legs after standing, and bladder issues were also common. For many people, these non-joint symptoms are actually more disabling than the flexibility itself. If you have hypermobility and experience lightheadedness when you stand up, crushing fatigue, or digestive problems that don’t respond to typical treatments, the connection to your connective tissue may be worth exploring.
How Flexibility Changes With Age
Flexibility peaks in childhood and gradually declines over the course of a lifetime. Research tracking over 6,000 people found that flexibility remains relatively stable until about age 30 in men and age 40 in women, then drops more steadily. Men lose flexibility at roughly 0.8% per year, while women lose it at about 0.6% per year.
The decline isn’t uniform across the body. Shoulder and trunk mobility tend to decrease the most, while elbows and knees hold onto their range of motion longer. For people with hypermobility, this means joints that were once excessively flexible may feel stiff or even “normal” with age. That can be confusing, especially if pain persists even after joints seem less loose. The underlying collagen difference doesn’t go away; it’s just that the natural stiffening of aging partially masks it.
Managing Hypermobility
The foundation of hypermobility management is targeted exercise, specifically building the muscle strength and control needed to compensate for loose ligaments. This is the opposite of what many hypermobile people instinctively do: stretching already overly flexible joints.
Effective programs follow a specific progression. Neuromuscular exercises come first, training your muscles to activate properly and stabilize joints before any real load is added. These include things like deep neck flexor activation with careful cues to avoid using the wrong muscles, rotator cuff activation through gentle isometric holds, and “short foot” exercises that strengthen the small muscles in the arches of your feet. The emphasis is on control, not power.
Once basic muscle activation patterns are established, the progression moves through a logical sequence: closed-chain exercises (where your hands or feet stay on a surface) before open-chain movements, mid-range isometric holds before full-range motion, bilateral movements before single-leg or single-arm work, and shorter lever arms before longer ones. Each step only advances when the previous one feels stable. Warmups should include gentle range-of-motion movements rather than aggressive stretching, which can worsen instability.
The recommended frequency for neuromuscular work is daily or at least five days per week, at a moderate effort level. The goal isn’t to eliminate flexibility but to build enough muscular support around each joint that the ligaments aren’t doing all the work. Over time, this reduces pain, decreases the frequency of subluxations and sprains, and improves quality of life. Many people notice meaningful improvement within a few months, though maintaining the gains requires consistent, ongoing exercise rather than a short course of therapy.