What Is A Bursa?
A bursa is a small, fluid-filled sac that cushions movement between bones, tendons, muscles, and skin. Bursae help reduce friction near joints, such as the shoulder, hip, knee, or elbow. Irritation or swelling in a bursa can cause localized pain and may affect how a joint moves.
Quick Facts About Bursa
Category
Small cushioning sac
Used for
Reducing friction near joints
Common confusion
Bursa is not the joint itself
Also called
Bursal Sac, Bursae
Often discussed with
Joint Injections
Key Takeaways About Bursa
- A bursa cushions tissues near joints.
- Bursa pain usually stays near the affected area.
- A bursa is not the same as a joint.
How Bursa Works
A bursa contains a small amount of fluid that lets nearby tissues glide during movement. It sits where rubbing may occur, such as between a tendon and bone. This cushion helps limit friction and pressure around the joint.
Related glossary terms: Joint Effusion, Inflammation, Facet Joint.
Inflammation can make a bursa swollen and tender. A clinician may check the painful area, joint motion, and symptoms during an evaluation. In the context of Joint Injections, the bursa's location helps guide treatment toward the structure causing pain. The bursa and the joint remain separate structures, even when both are near the same body part.
From the Premier Injury Specialists team
When we assess bursa-related pain, we connect the tender location with movement, range of motion, and the surrounding joint structures. Our team uses that information to decide whether a joint injection should target the bursa or a different source of pain.
Bursa in Practice: A Real-World Example
A person with shoulder pain may have irritation in a bursa near the shoulder joint. During a joint injection evaluation, the clinician identifies whether the bursa matches the person's pain pattern before selecting the target.
Related Terms
Joint Effusion
A joint effusion is extra fluid inside or around a joint. The fluid may collect after…
Inflammation
Inflammation is the body’s response to irritation, injury, or disease. It involves changes in nearby tissues…
Facet Joint
A Facet Joint is a small joint between the bones at the back of the spine…
Sacroiliac Joint
A sacroiliac joint is the connection between the sacrum at the base of the spine and…
Premier Injury Specialists
Have Questions About Bursa?
Contact Premier Injury Specialists for practical guidance on Bursa and related pain management physician work in Stockbridge.