Trochanteric bursitis is inflammation of the bursa (fluid-filled sac near a joint) at the part of the hip called the greater trochanter. When this bursa becomes irritated or inflamed, it causes pain in the hip. This is a common cause of hip pain.
There are two major bursae in the hip that typically become irritated and inflamed. One bursa covers the bony point of the hip bone called the greater trochanter. Inflammation of this bursa is called trochanteric bursitis. Another bursa — the iliopsoas bursa — is located on the inside (groin side) of the hip. When this bursa becomes inflamed, the condition is also sometimes referred to as hip bursitis, but the pain is located in the groin area.
Hip bursitis can affect anyone, but is more common in women and middle-aged or elderly people. It is less common in younger people and in men.
The following risk factors have been associated with the development of hip bursitis.
- Repetitive stress (overuse) injury. This can occur when running, stair climbing, bicycling, or standing for long periods of time.
- Hip injury. An injury to the point of your hip can occur when you fall onto your hip, bump your hip, or lie on one side of your body for an extended period of time.
- Spine disease. This includes scoliosis, arthritis of the lumbar (lower) spine, and other spine problems.
- Leg-length inequality. When one leg is significantly shorter than the other, it affects the way you walk, and can lead to irritation of a hip bursa.
- Rheumatoid arthritis. This makes the bursa more likely to become inflamed.
- Previous surgery. Surgery around the hip or prosthetic implants in the hip can irritate the bursa and cause bursitis.
- Bone spurs or calcium deposits. These can develop within the tendons that attach muscles to the trochanter. They can irritate the bursa and cause inflammation.
- Incorrect posture. This condition can be caused by scoliosis, arthritis of the lumbar (lower) spine, and other spine problems.