When a certain fluid-filled sac that acts like a cushion in the hip becomes inflamed and irritated.

Trochanteric bursitis is painful swelling, also called inflammation, of a specific fluid-filled sac in the hip. This sac, also known as a bursa, covers a part of the hip bone called the greater trochanter. Risk factors for trochanteric bursitis include overuse of the hip, a hip injury and spine conditions such as scoliosis.

Trochanteric bursitis causes pain in the point of the hip. The pain often spreads to the outer thigh area. At first, the pain may feel sharp and intense. Later, it may turn into an ache that spreads across the hip. The pain is often worse at night, while lying on the hip and when rising from a chair after sitting for a while.

Trochanteric bursitis treatment often involves simple changes. Take a break from doing things that make the pain worse. Or try NSAID pain relievers such as ibuprofen (Advil, Motrin IB, others) or naproxen sodium (Aleve). Treatments such as physical therapy or steroid shots also may be needed. It's rare to need surgery.