The most common causes of bursitis are repetitive motions or positions that irritate the bursae around a joint. Examples include:

  • Throwing a baseball or lifting something over your head repeatedly
  • Leaning on your elbows for long periods of time
  • Extensive kneeling, for tasks such as laying carpet or scrubbing floors
  • Prolonged sitting, particularly on hard surfaces

Some bursae at the knee and elbow lie just below the skin, so they are at higher risk of puncture injuries that can lead to infection of the bursae (septic bursitis).

Sep. 24, 2011

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