What is Bursitis? Bursitis is a inflammation of bursa of synovial fluid in the body. Bursa is a jelly-like sac which forms under the skin and usually contains a small amount of fluid. Most commonly bursitis is lies between the tendon or a skin and bone. In human body there are around160 bursa are located adjacent to the tendons near the large joint such as muscles, bones, joints, elbow, knee and tendon. Bursa decrease assist movement and friction of the tendon, most often bursitis occur near to joint and bursa become inflamed. Bursitis is most common in women, elderly or middle age people. Causes of bursitis : Anything that become inflamed the fluid-filled can cause bursitis and reduce friction between moving parts. Bursitis can be caused by trauma , chronic overuse, rheumatoid arthritis or infection which can lead to inflammation. The following risk factors are: Repetitive stress : this stress occur when stair clim