Trochanteric bursitis can be found in up to 70% of people with sciatica-like symptoms and mainly affects middle-aged women. The trochanteric bursa is a fluid-filled sac that sits on top of a bony prominence on the femur and can become inflamed causing pain in the outside of the thigh or buttock. Overuse injuries, direct trauma, poor posture, leg length discrepancies, previous hip surgery, and other diseases can cause trochanteric bursitis. This is usually treated with a course of anti-inflammatories, local corticosteroid injections and physical therapy to correct poor posture and muscle imbalances. Surgery may be needed in some cases.