Hypermobility in Children: When Bendy Joints Need Attention
Written by the PHYSITEK paediatric physiotherapy team · General education, not a substitute for an individual assessment
Plenty of children can bend their thumbs to their forearms, sit in a W, do the splits without practice or hyperextend their elbows. Being bendy is common, often inherited, and frequently an advantage in gymnastics, dance and swimming. Hypermobility becomes something we treat only when it comes with pain, fatigue, repeated injuries or reduced participation.
The terms you may hear
- Generalised joint hypermobility. Joints move beyond the typical range. Often symptom-free and simply a feature of that child's body.
- Hypermobility spectrum disorder. Hypermobility plus symptoms such as pain, instability, fatigue or functional difficulty, without meeting the criteria for a specific inherited connective tissue condition.
- Hypermobile Ehlers-Danlos syndrome. A specific diagnosis made clinically against defined criteria, involving hypermobility plus systemic features and family history. There is no confirmatory genetic test for this type.
Clinicians often use the Beighton score, a nine-point check of the thumbs, little fingers, elbows, knees and trunk. Children are naturally more flexible than adults, so paediatric thresholds are higher than adult ones, with a score of six or more out of nine suggested as more meaningful in children. Hypermobility assessment is generally not applied below about five years of age, because young children are flexible as a matter of course.
Symptoms that suggest it is worth looking at
- Joint or muscle pain, often in the legs, worse after activity or in the evening and at night.
- Unusual tiredness after ordinary activity, or opting out of sport and play.
- Repeated sprains, joints that slip or feel unstable, or a kneecap that gives way.
- Frequent falls or clumsiness beyond what is typical for age.
- Delayed motor milestones, difficulty with handwriting endurance, or poor sitting posture.
- Flat feet that roll in significantly, with tired or sore feet.
How physiotherapy helps
Management is about building support around joints that already have plenty of range. Stretching is generally not the answer, because the range is not the problem.
- Progressive strengthening to improve joint stability and control, especially around hips, knees, ankles, shoulders and trunk.
- Balance and body-awareness work, because hypermobile joints give less feedback about where they are in space.
- Pacing. Planning activity so the week does not swing between overdoing it and recovering, which is a common pattern.
- Footwear advice and, where indicated, orthoses for painful, rolling feet.
- Taping or bracing for specific symptomatic joints, used selectively.
- Pain education and practical adjustments at school, often with occupational therapy input.
This is usually a longer-term partnership than a short course of treatment. Progress comes from consistent, gradually increasing activity that the child is willing to keep doing.
When is a routine check worthwhile?
Book an assessment for persistent joint pain, recurrent sprains or dislocations, fatigue that limits participation, frequent falls, or a decline in what your child can manage. Ask your GP about further review if there are additional features such as unusually stretchy or fragile skin, poor wound healing, dizziness on standing, gut symptoms, or a strong family history of connective tissue conditions.
When should I seek prompt medical advice?
Seek prompt care for a joint that has dislocated and will not relocate, a hot or swollen joint, severe pain, inability to weight-bear, fainting episodes, or chest pain.
A reassuring takeaway
Bendy is not a diagnosis. Most hypermobile children need nothing more than active play and sensible activity levels. For those with pain or instability, well-targeted strength work and pacing can make a substantial difference to comfort and confidence.
Sources and further reading
Cincinnati Children's --- Therapeutic management of paediatric hypermobility spectrum disorder
Suggested closing call to action
Still unsure about something you have noticed? A GP, child health nurse or paediatric physiotherapist can help you decide whether your child would benefit from an individual assessment. Contact PHYSITEK to ask about a paediatric physiotherapy visit.
Concerned about your child's movement?
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