Most common among young athletes, pes anserine bursitis occurs when constant friction on the bursa sac causes it to become inflamed. When irritated, it produces too much fluid, causing it to swell and put pressure on the adjacent parts of the knee.

Symptoms of pes anserine bursitis typically include pain, tenderness, and swelling on the inside of the knee. These symptoms will be located about 2 to 3 inches below the knee joint and will increase with exercise and while climbing stairs.

Common Causes of Pes Anserine Bursitis
  • Repetitive activities
  • Lack of stretching before running
  • Excessive uphill running
  • Obesity
  • Osteoarthritis of the knee
  • Turning the leg sharply with the foot planted on the ground
  • Direct injury to the leg
  • Tight hamstring muscles
  • A tear in the cartilage of the knee
  • Flat feet

If you are an athlete suffering with bursitis, modification of your workout or training is essential in order to avoid recurrence of pain and inflammation.

Initial treatment of pes anserine bursitis is conservative. Non-invasive treatment typically involves:

  • rest from activities that cause irritation.
  • applying ice three or four times a day.
  • taking aspirin or ibuprofen to ease the pain and reduce the inflammation.
  • Injection of anesthetic and steroids into the bursa sac.
  • Physical therapy for stretching exercises and ultrasound treatments.
knee bursitis

If symptoms continue, your doctor may suggest orthopaedic surgery to remove the inflamed bursa. Although the procedure is typically outpatient, it can cause related problems in the future. For some patients, adult stem cell injections can heal the inflamed region without having to remove it.