Trochanteric bursitis refers to inflammation and swelling of the bursa located between the point of the hip (trochanter) and the overlying gluteal muscles. In literature it is described as a self-limiting disorder in the majority of patients (Lustenberger et al., 2013).
A bursa is a fluid-filled sac which allows adjacent tissues to slide over one another without friction. The trochanteric bursa works to allow the gluteal muscles to slide smoothly and without friction over the point of the hip.
Trochanteric bursitis commonly results from excessive friction on the bursa which can occur when you have tight gluteal muscles or poor biomechanics around the pelvis.
Management involves resting from aggravating activities strengthening the glutes and core and correcting lower limb biomechanics.
Lustenberger D.P. et al., 2013, Efficacy of Treatment of Trochanteric Bursitis: A Systematic Review, Clinical Journal of Sport Medicine, 21(5); pp: 447-453