Knee pain causes include:

  1. ACL injury (tearing of the anterior cruciate ligament in your knee)
  2. Avascular necrosis (osteonecrosis)
  3. Baker cyst
  4. Broken leg
  5. Collateral ligament injury
  6. Dislocation: First aid
  7. Gout
  8. Iliotibial band syndrome
  9. Knee bursitis (inflammation of fluid-filled sacs in the knee joint)
  10. Lupus
  11. Medial collateral ligament injury
  12. Osgood-Schlatter disease
  13. Osteoarthritis
  14. Osteochondritis dissecans
  15. Osteomyelitis
  16. Patellar tendinitis
  17. Patellofemoral pain syndrome
  18. Posterior cruciate ligament injury
  19. Pseudogout
  20. Referred pain from hip area
  21. Septic arthritis
  22. Sprains
  23. Tendinitis
  24. Torn meniscus

Causes shown here are commonly associated with this symptom. Work with your doctor or other health care professional for an accurate diagnosis.

From Mayo Clinic to your inbox

Sign up for free and stay up to date on research advancements, health tips, current health topics, and expertise on managing health. Click here for an email preview.

To provide you with the most relevant and helpful information, and understand which information is beneficial, we may combine your email and website usage information with other information we have about you. If you are a Mayo Clinic patient, this could include protected health information. If we combine this information with your protected health information, we will treat all of that information as protected health information and will only use or disclose that information as set forth in our notice of privacy practices. You may opt-out of email communications at any time by clicking on the unsubscribe link in the e-mail.

Aug. 18, 2023