Pain on the outside of your hip, especially when lying on that side at night or climbing stairs? It may be GTPS (Greater Trochanteric Pain Syndrome), once called trochanteric bursitis. It affects women around four times more often than men, usually after 50. Worthing Clinical Massage Therapist Kim Noyce explains what GTPS is, why women are more vulnerable, the gluteus medius connection, and practical steps to ease your hip pain.