What is bursitis?
• Bursitis is the condition that occurs when a bursa becomes inflamed.
• A bursa is a sac with a potential space that makes it easier for one tissue to glide over another. They are often located near, and sometimes communicate with, joints.
• There are approximately 160 bursae in the body, but only a few of them become clinically affected.
• Most bursae differentiate during development, but new ones may form in response to irritation, inflammation, or trauma.