This lecture offers an overview of Greater Trochanteric Pain Syndrome (GTPS), starting with a clear definition of the condition and the structures involved. We will look at the difference between tendinosis and tendinopathy in relation to gluteal tendon dysfunction, and discuss the key factors thought to contribute to the development of GTPS, including prevalence and common mechanisms. The session will finish with two case studies of a high functioning patient, but also a severe and irritable patient to help illustrate how to apply assessment and management strategies in clinical practice.