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Osgood-Schlatter Disease (Growing Pains in Knee)

Osgood-Schlatter disease causes knee pain and a painful bump below the kneecap in active growing children. Learn about causes, treatment, when your child can return to sport, and whether it goes away.

πŸ“…Last reviewed: January 2026πŸ₯Bones & Joints

πŸ“–What is Osgood-Schlatter Disease (Growing Pains in Knee)?

Osgood-Schlatter disease causes knee pain and a painful bump below the kneecap in active growing children. Learn about causes, treatment, when your child can return to sport, and whether it goes away.

πŸ”¬What Causes It?

  • Repeated stress on the growth plate (apophysis) at the top of the shin bone (tibial tubercle)
  • The patellar tendon (connects kneecap to shin) pulls repeatedly on this growing bone during running and jumping
  • Growth plate is weaker than mature bone - cannot handle the repetitive stress
  • Small injuries accumulate at the growth plate, causing inflammation and sometimes partial separation
  • Happens during rapid growth spurts when bones grow faster than muscles, creating extra tightness
  • NOT caused by a single injury - it's an overuse condition from repeated stress

⚠️Risk Factors

ℹ️

You may be at higher risk if:

  • Age 10-15 years (peak growth spurt period) - boys slightly older than girls
  • Active participation in running and jumping sports (basketball, football, netball, gymnastics, track and field)
  • More common in boys historically (3:1 ratio), but gap closing as girls' sports participation increases
  • Growth spurts - rapid skeletal growth creates muscle tightness
  • Tight quadriceps (front thigh) or hamstring muscles
  • Poor flexibility
  • Training intensity - more practice hours = higher risk
  • Hard playing surfaces (concrete, artificial turf)
  • Bilateral (both knees) in 20-30% of cases

πŸ›‘οΈPrevention

  • βœ“Maintain good quadriceps and hamstring flexibility with regular stretching
  • βœ“Gradual increases in training intensity (no more than 10% per week)
  • βœ“Adequate rest between intensive training sessions
  • βœ“Cross-training with low-impact activities (swimming, cycling)
  • βœ“Proper warm-up before sports
  • βœ“Good running and jumping technique
  • βœ“Appropriate footwear with good cushioning
  • βœ“Avoid playing on very hard surfaces when possible
  • βœ“Monitor for early symptoms and modify activity promptly if pain develops