Benign Hypermobility Syndrome: When Flexibility Crosses the Line

Understanding Benign Hypermobility Syndrome

Many children are naturally flexible, but when this flexibility causes joint pain, instability, or fatigue, it may indicate Benign Joint Hypermobility Syndrome (BJHS).
It’s called benign because it isn’t due to inflammation or damage—yet it can still affect a child’s comfort and coordination.

Common Signs and Symptoms

  • Frequent joint pain, especially after activity
  • “Clicking” or “giving way” of joints
  • Knee, ankle, or wrist aches after sports or long walks
  • Flat feet or easy bruising
  • Tiring quickly or avoiding physical activity

Red Flags

  • Persistent or night pain
  • Swelling or redness (may indicate another condition)
  • Recurrent dislocations or sprains
  • Extreme flexibility combined with fatigue or dizziness (possible connective-tissue disorder)

Diagnosis

Diagnosis is clinical, using the Beighton score to measure joint flexibility.
Other causes such as arthritis or connective-tissue diseases must be ruled out.

Management

Physical Therapy

  • Focus on muscle strengthening and joint-stabilizing exercises
  • Encourage core strength and balance training

Lifestyle Measures

  • Supportive footwear
  • Warm-up before activity and avoid overstretching
  • Adequate hydration, rest and optimum sleep

Pain Relief

  • Occasional use of mild pain relievers as advised by a doctor

 

Hope Arthritis Foundation’s Message

Flexibility is wonderful—but pain is not normal. Our goal is to help families recognize when “double-jointedness” needs medical evaluation so children can stay active safely.