Understanding Bursitis and How It Causes Joint Pain

Bursitis is inflammation of a bursa, a small, fluid-filled sac that acts as a cushion between bones, tendons, muscles, and skin. Bursae help reduce friction and allow surrounding tissues to move smoothly when a joint bends, rotates, or bears weight.

The human body contains more than 150 bursae, many of which are located near major joints. When a bursa becomes irritated, it may produce excess fluid and become swollen. This inflammation can create pressure and tenderness around the affected joint.

Bursitis most commonly develops in the shoulder, hip, elbow, and knee. It can occur suddenly following an injury or develop gradually because of repetitive movements, prolonged pressure, or underlying medical conditions.

What Causes Bursitis and Joint Inflammation?

Bursitis develops when repeated friction, pressure, or direct injury irritates a bursa. Several factors can contribute to this inflammation.

Common causes include:

• Repetitive movements: Repeated overhead reaching, lifting, kneeling, or bending can irritate bursae surrounding the joints.
• Prolonged pressure: Spending extended periods kneeling, leaning on the elbows, or sitting on hard surfaces can contribute to inflammation.
• Joint injuries: Falls, direct impacts, and other injuries can damage the tissues surrounding a bursa.
• Age-related changes: As individuals age, tendons and surrounding tissues may become less resilient, increasing susceptibility to irritation.
• Underlying medical conditions: Rheumatoid arthritis, gout, and other inflammatory conditions can increase the risk of bursitis.
• Infections: Bacteria can enter a bursa through a break in the skin, causing infectious bursitis.

In some cases, bursitis develops without one identifiable cause. Activities that repeatedly stress a joint may contribute to inflammation even when there is no specific injury.

What Are the Most Common Symptoms of Bursitis?

Bursitis symptoms depend on which joint is affected and how much inflammation is present. Pain and tenderness near the affected bursa are among the most common complaints.

Other symptoms may include:

• Swelling around the affected joint
• Tenderness when pressure is applied
• Pain during movement or physical activity
• Reduced joint flexibility or range of motion
• Warmth or redness around the affected area
• Discomfort that worsens with repetitive movements
• Pain when lying on or putting pressure on the affected joint

Some individuals experience pain primarily when moving the joint, while others notice discomfort even when resting. When bursitis affects the hip, for example, lying on the affected side may become particularly uncomfortable.

Fever, significant redness, and warmth accompanied by worsening pain may indicate infectious bursitis. These symptoms require prompt medical evaluation.

Which Joints Are Most Commonly Affected by Bursitis?

Although bursitis can develop in several areas of the body, certain joints are more frequently affected because they experience repeated movement, friction, or pressure.

What Causes Shoulder Bursitis?

Shoulder bursitis commonly involves inflammation of the subacromial bursa, which helps reduce friction between the rotator cuff tendons and the shoulder blade.

Repeated overhead activities, sports, lifting, and age-related changes can contribute to shoulder inflammation. Symptoms often include pain when reaching overhead, lifting objects, or sleeping on the affected side.

Shoulder bursitis may also occur alongside rotator cuff tendinitis or other shoulder conditions.

How Does Hip Bursitis Affect Mobility?

Hip bursitis frequently affects the trochanteric bursa, located along the outside of the hip near the greater trochanter, a bony prominence at the top of the thighbone.

This condition can cause tenderness along the outer hip, particularly when walking, climbing stairs, standing for extended periods, or lying on the affected side.

Hip bursitis is sometimes associated with greater trochanteric pain syndrome, which can also involve irritation or injury of the gluteal tendons.

What Causes Elbow Bursitis?

Elbow bursitis develops when the bursa located at the tip of the elbow becomes inflamed. Repeatedly leaning on hard surfaces, direct trauma, and certain inflammatory conditions can contribute to this problem.

A noticeable swelling or fluid-filled lump may develop over the elbow. Although some individuals experience little pain, others report tenderness and discomfort when bending the arm or placing pressure on the affected area.

How Does Knee Bursitis Develop?

Knee bursitis occurs when one or more bursae surrounding the knee become irritated. Repetitive kneeling, sports activities, direct injuries, and prolonged pressure can contribute to inflammation.

Symptoms may include swelling, tenderness, warmth, and pain when bending or kneeling. Depending on the affected bursa, discomfort may develop at the front, inside, or below the kneecap.

How Is Bursitis Diagnosed?

Diagnosing bursitis typically begins with a physical examination and a review of the patient’s medical history. A healthcare provider will ask about the location of the pain, when symptoms began, and whether certain activities make the discomfort worse.

The examination may include checking for swelling, tenderness, warmth, and limitations in joint movement.

Additional diagnostic tests may include:

• X-rays: Help identify bone abnormalities, arthritis, or other potential causes of joint pain.
• Ultrasound: Allows providers to evaluate soft tissues and identify fluid accumulation around a bursa.
• MRI: Provides detailed images of the surrounding joints, tendons, muscles, and other soft tissues.
• Fluid analysis: In certain cases, a small sample of fluid may be collected from the bursa to check for infection or conditions such as gout.

An accurate diagnosis is important because bursitis can produce symptoms similar to arthritis, tendon injuries, and other musculoskeletal conditions.

What Treatment Options Can Help Relieve Bursitis?

Bursitis treatment focuses on reducing inflammation, relieving pain, and restoring comfortable joint movement. The appropriate approach depends on the affected joint, the severity of symptoms, and whether an underlying condition is contributing to inflammation.

Common treatment options include:

Can Rest and Activity Modification Improve Bursitis?

Reducing activities that aggravate the affected joint can help give irritated tissues time to recover. This does not necessarily mean avoiding all movement. Instead, patients may benefit from temporarily modifying repetitive activities, limiting excessive pressure, and gradually returning to normal movement as symptoms improve.

Applying ice to the affected area may also help reduce swelling and discomfort.

Can Physical Therapy Help Treat Bursitis?

Physical therapy can improve joint mobility, strengthen surrounding muscles, and reduce mechanical stress on an inflamed bursa.

A physical therapist may recommend targeted stretching, strengthening exercises, posture adjustments, and movement modifications. Strengthening the muscles surrounding the hip or shoulder, for example, may help improve joint stability and reduce irritation during everyday activities.

Are Anti-Inflammatory Medications Used for Bursitis?

Nonsteroidal anti-inflammatory drugs (NSAIDs) may help reduce pain and inflammation in some individuals. However, these medications are not appropriate for everyone, particularly people with certain kidney conditions, gastrointestinal problems, cardiovascular risks, or medication interactions.

A healthcare provider can help determine whether medication is appropriate based on an individual’s medical history.

Can Corticosteroid Injections Relieve Bursitis Pain?

Corticosteroid injections may be considered when bursitis symptoms persist despite conservative treatment. These injections deliver anti-inflammatory medication near the affected bursa to help reduce inflammation and discomfort.

Injections may provide temporary symptom relief, although repeated corticosteroid injections may increase the risk of damage to nearby tendons and other tissues. Their use should be determined by a qualified healthcare provider.

When Is Additional Treatment Necessary?

Most cases of bursitis improve with appropriate conservative care. However, persistent or recurring inflammation may require further evaluation to identify contributing conditions or alternative sources of pain.

If an infection is responsible for the inflammation, antibiotics and sometimes drainage of the affected bursa may be necessary. Surgery is rarely needed but may be considered in select cases of chronic, severe bursitis that does not respond to other treatments.

How Can Bursitis Be Prevented?

Although not every case of bursitis can be prevented, certain lifestyle and activity modifications may reduce the risk of developing joint inflammation.

Helpful prevention strategies include:

• Taking regular breaks from repetitive movements.
• Using protective padding when kneeling or leaning on hard surfaces.
• Maintaining proper posture during work and physical activities.
• Gradually increasing exercise intensity and duration.
• Strengthening muscles that support major joints.
• Warming up before sports and strenuous activities.
• Avoiding prolonged pressure on sensitive joints.

Maintaining appropriate activity levels and addressing joint discomfort early can also help prevent minor irritation from becoming a persistent problem.

When Should Someone See a Specialist for Bursitis?

Occasional joint soreness may improve with rest and activity modification. However, persistent pain, recurring swelling, or difficulty performing everyday activities may indicate a need for professional evaluation.

Individuals should seek medical attention if joint pain does not improve with initial treatment, interferes with normal movement, or repeatedly returns.

Immediate medical evaluation is important when symptoms include fever, significant redness, warmth, or rapidly increasing swelling because these may indicate an infection.

A pain management or orthopedic specialist can evaluate the affected joint, determine whether bursitis is responsible for symptoms, and recommend an appropriate treatment plan.

Can Bursitis-Related Joint Pain Be Managed Successfully?

Bursitis can cause significant joint discomfort, particularly when inflammation interferes with normal movement. However, many individuals experience improvement with appropriate treatment, activity modifications, and targeted rehabilitation.

Recognizing symptoms early and identifying the underlying cause of inflammation are important steps toward restoring mobility and preventing recurring discomfort. When conservative treatments do not provide sufficient relief, additional medical options may help address persistent symptoms.

Individuals experiencing ongoing joint pain should consider an evaluation with a qualified specialist to determine whether bursitis or another musculoskeletal condition is responsible. A personalized treatment approach can help reduce discomfort, improve joint function, and support a return to everyday activities.