Patellar Tendonitis (Jumper's Knee)
Patellar Tendon · Symptoms

Patellar Tendon Symptoms: How to Tell If You Have It

Every symptom of patellar tendon runners should recognize — from the earliest warning signs to when to stop and see a clinician.

What Patellar Tendon Feels Like

Patellar tendinopathy — 'jumper's knee' — is degeneration of the patellar tendon just below the kneecap. Common in jumpers and sprinters; in distance runners it usually shows up after spikes in hill work or speed.

  • Pain on the tendon just below the kneecap
  • Stiffness in the morning
  • Pain that warms up at first but worsens with jumping or sprinting
  • Tenderness pressing on the tendon

Early Warning Signs

Catching patellar tendon at this stage is the difference between a week of reduced training and a multi-week shutdown.

  • Soreness below the kneecap after sessions
  • Morning stiffness in the front of the knee
  • Discomfort going down stairs

When to Stop and See a Clinician

  • Pain during every jump or sprint
  • Pain at rest
  • Visible thickening of the tendon

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