Bursitis can cause a
bursa to produce and fill up with fluid. A bursa that
is swollen with fluid can be diagnosed and treated by drawing the fluid out
with a needle and syringe (aspiration). Fluid often builds up in the
bursa again. Draining the bursa can provide relief, but the cause of
fluid buildup may also require treatment. After the fluid is tested for signs of
infection or inflammation, proper treatment can be prescribed.