What is Hip Bursitis or Trochanteric Bursitis? A bursa is a sac that is filled with lubricating fluid situated between tissues like muscles, tendons, skin and bone. Bursa helps to lessens irritation and friction between the tissues and bone. The bursa are sacs filled with gelatinous substance and works as shock absorber during movements and … Continue reading Hip Bursitis or Trochanteric Bursitis: Causes, Symptoms, Treatment, Exercises